{"id":15925,"date":"2021-08-03T11:58:33","date_gmt":"2021-08-03T06:28:33","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=15925"},"modified":"2021-09-15T20:05:13","modified_gmt":"2021-09-15T14:35:13","slug":"ap-10th-class-physical-science-bits-chapter-12","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-10th-class-physical-science-bits-chapter-12\/","title":{"rendered":"AP 10th Class Physical Science Bits Chapter 12 Carbon and its Compounds"},"content":{"rendered":"

Practice the AP 10th Class Physical Science Bits with Answers<\/a> Chapter 12 Carbon and its Compounds on a regular basis so that you can attempt exams with utmost confidence.<\/p>\n

AP State Syllabus 10th Class Physical Science Bits 12th Lesson Carbon and its Compounds with Answers<\/h2>\n

Concept – 1 : Versatile Nature of Carbon<\/span><\/p>\n

Question 1.
\nThe following is not correct about carbon
\nA) It is a non metal
\nB) It belongs to 14th group
\nC) Its electron configuration is 1s2<\/sup> 2s2<\/sup>2p2<\/sup>
\nD) Its valency is 3
\nAnswer:
\nD) Its valency is 3<\/p>\n

\"AP<\/p>\n

Question 2.
\nThe electronegativity of carbon is
\nA) 1.5
\nB) 2.5
\nC) 3.5
\nD) 4
\nAnswer:
\nB) 2.5<\/p>\n

Question 3.
\nThecovalency of carbon is
\nA) 1
\nB) 2
\nC) 3
\nD) 4
\nAnswer:
\nD) 4<\/p>\n

Question 4.
\nMatch the following:
\na) Methane — i) sp
\nb) Ethylene or ethene — ii) sp3<\/sup>
\nc) Acetylene or ethyne — iii) sp2<\/sup>
\nA) a \u2192 i, b \u2192 ii, c \u2192 iii
\nB) a \u2192 iii, b \u2192 ii, c \u2192 i
\nC) a \u2192 ii, b \u2192 iii, c \u2192 i .
\nD) a \u2192 ii, b \u2192 i, c \u2192 iii
\nAnswer:
\nC) a \u2192 ii, b \u2192 iii, c \u2192 i<\/p>\n

Question 5.
\nMatch the following:
\na) Methane — i), 180\u00b0
\nb) Ethene — ii) 109\u00b0 28′
\nc) Ethyne — iii) 120\u00b0
\nA) a \u2192 i, b \u2192 ii, c \u2192 iii
\nB) a \u2192 iii, b \u2192 ii, c i
\nC) a \u2192 ii, b \u2192 i, c \u2192 iii
\nD) a \u2192 ii, b \u2192 iii, c \u2192 i
\nAnswer:
\nD) a \u2192 ii, b \u2192 iii, c \u2192 i<\/p>\n

Question 6.
\nCarbon (Z=6) is the element of group-IVA of periodic table. Which of the following is the atomic number of next number in the group
\nA) 9
\nB) 14
\nC) 15
\nD) 17
\nAnswer:
\nB) 14<\/p>\n

Question 7.
\nThe number of sigma and pi bonds in ethene are …………,………………respectively.
\nA) 1, 5
\nB) 2, 3
\nC) 3,2
\nD) 5,1
\nAnswer:
\nD) 5,1<\/p>\n

\"AP<\/p>\n

Question 8.
\nNumber of sigma and pi bonds in ethyne are ……………
\nA) 2, 3
\nB) 3, 2
\nC) 4,1
\nD) 1, 4
\nAnswer:
\nB) 3, 2<\/p>\n

Question 9.
\nEthylene is common name for ……………….
\nA) ethene
\nB) ethane
\nC) ethyne
\nD) ethanol
\nAnswer:
\nA) ethene<\/p>\n

Question 10.
\nAcetylene is common name for ……………..
\nA) ethane
\nB) ethene
\nC) ethyne
\nD) ethanol
\nAnswer:
\nC) ethyne<\/p>\n

Question 11.
\nThe number of a bonds in methane is …………………
\nA) 2
\nB) 3
\nC) 4
\nD) 1
\nAnswer:
\nC) 4<\/p>\n

Question 12.
\nThe electronic configuration of carbon in excited state is ………………….
\nA) 1s2<\/sup> 2s2<\/sup> 2p1<\/sup>y<\/sub>2p1<\/sup>z<\/sub>
\nB) 1s2<\/sup> 2s1<\/sup> 2p1<\/sup>x<\/sub>2p1<\/sup>y<\/sub>2p1<\/sup>z<\/sub>
\nC) 1s2<\/sup> 2s2<\/sup> 2p1<\/sup>x<\/sub> 2p1<\/sup>y<\/sub>
\nD) 1s2<\/sup> 2s2<\/sup> 2p2<\/sup>x
\nAnswer:
\nB) 1s2<\/sup> 2s1<\/sup> 2p1<\/sup>x<\/sub>2p1<\/sup>y<\/sub>2p1<\/sup>z<\/sub><\/p>\n

Question 13.
\nThe bond angle in C2<\/sub>H2<\/sub> molecule is
\nA) 109\u00b0 28′
\nB) 120\u00b0
\nC) 180\u00b0
\nD) 107\u00b0
\nAnswer:
\nD) 107\u00b0<\/p>\n

Question 14.
\nHow many unpaired electrons the carbon atom posseses in the ground state?
\nA) 2
\nB) 3
\nC) 4
\nD) 1
\nAnswer:
\nA) 2<\/p>\n

Question 15.
\nThe type of hybridization in CH4<\/sub> molecule is ………..
\nA) sp
\nB) sp2<\/sup>
\nC) sp3<\/sup>
\nD) sp3<\/sup>d
\nAnswer:
\nC) sp3<\/sup><\/p>\n

Question 16.
\nWhich of the following molecules undergo sp hybridisation ?
\nA) CH4<\/sub>
\nB) C2<\/sub>H4<\/sub>
\nC) C2<\/sub>H6<\/sub>
\nD) C2<\/sub>H2<\/sub>
\nAnswer:
\nD) C2<\/sub>H2<\/sub><\/p>\n

Question 17.
\nWho among the following disproved vitalism theory ?
\nA) Berzelius
\nB) Linus pauling
\nC) Autbau
\nD) Wohler
\nAnswer:
\nD) Wohler<\/p>\n

Question 18.
\nThe bond angle in C2<\/sub>H4<\/sub> is
\nA) 109\u00b0 28′
\nB) 180\u00b0
\nC) 104\u00b0 27′
\nD) 120\u00b0
\nAnswer:
\nD) 120\u00b0<\/p>\n

\"AP<\/p>\n

Question 19.
\nThe chemical bonds present in C2<\/sub>H2<\/sub> are
\nA) 2 sigma and 3 pi
\nB) 1 sigma and 2 pi
\nC) 3 sigma and 2 pi
\nD) 2 sigma and 1 pi
\nAnswer:
\nC) 3 sigma and 2 pi<\/p>\n

Question 20.
\nn – butane and isobutane are
\nA) structural isomers
\nB) functional isomers
\nC) stereo isomers
\nD) geometrical isomers
\nAnswer:
\nA) structural isomers<\/p>\n

CONCEPT – II – Allotropes of Carbon<\/span><\/p>\n

Question 21.
\nThe property of an element to exist in two or more physical forms with same chemical properties but different physical properties is called
\nA) catenation
\nB) isomerism
\nC) allotropy
\nD) conjugation
\nAnswer:
\nC) allotropy<\/p>\n

Question 22.
\nThe amorphous forms of carbon allutropes
\ni) coal
\nii) coke
\niii) animal charcoal
\niv) diamond
\nA) only i
\nB) only ii
\nC) both i and ii
\nD) i, ii and iii
\nAnswer:
\nD) i, ii and iii<\/p>\n

Question 23.
\nThe crystalline forms of carbon allotropes
\ni) diamond
\nii) graphite
\niii) lamp black
\niv) buckminster fullerene
\nA) only i
\nB) both i and ii
\nC) i, ii and iv
\nD) all of these
\nAnswer:
\nC) i, ii and iv<\/p>\n

Question 24:
\nThe hybridisation present in diamond is
\nA) sp
\nB) sp2<\/sup>
\nC) sp3<\/sup>
\nD) dsp2<\/sup>
\nAnswer:
\nC) sp3<\/sup><\/p>\n

Question 25.
\nThe hardest material among these is ……………….
\nA) diamond
\nB) graphite
\nC) buckminster fullerene
\nD) coke
\nAnswer:
\nA) diamond<\/p>\n

Question 26.
\nIn diamond each carbon atom has a …………………… environment.
\nA) trigonal planar
\nB) tetrahedral
\nC) square planar
\nD) pyramidal
\nAnswer:
\nB) tetrahedral<\/p>\n

Question 27.
\nGraphite forms ……………. layer structure.
\nA) one dimensional
\nB) two dimensional
\nC) three dimensional
\nD) none of these
\nAnswer:
\nB) two dimensional<\/p>\n

Question 28.
\nIn layer structure of graphite the carbon atoms are in ………………. environment.
\nA) trigonal planar
\nB) tetrahedral
\nC) square planar
\nD) pyramidal
\nAnswer:
\nA) trigonal planar<\/p>\n

Question 29.
\nThe hybridisation present in graphite is …………………….
\nA) sp
\nB) sp2<\/sup>
\nC) sp3<\/sup>
\nD) d2<\/sup>sp3<\/sup>
\nAnswer:
\nB) sp2<\/sup><\/p>\n

Question 30.
\nThe distance between two successive layers of graphite is…………….
\nA) 1.35 A\u00b0
\nB) 2.35 A\u00b0
\nC) 3.35 A\u00b0
\nD) 4.35 A0
\nAnswer:
\nC) 3.35 A\u00b0<\/p>\n

\"AP<\/p>\n

Question 31.
\nThe use of graphite is ……………….
\nA) lubricant
\nB) lead in pencils
\nC) good conductor of electricity
\nD) all of these
\nAnswer:
\nD) all of these<\/p>\n

Question 32.
\nDelocalized n system is present in …….
\nA) diamond
\nB) charcoal
\nC) coal
\nD) graphite
\nAnswer:
\nD) graphite<\/p>\n

Question 33.
\nGraphite is a good conductor of electricity due to ………………….
\nA) delocalized a system
\nB) localized n system
\nC) delocalized n system
\nD) localized a system
\nAnswer:
\nC) delocalized n system<\/p>\n

Question 34.
\nBuckminster fullerene was discovered by ………………
\nA) Robert F. Curl
\nB) Harold W.Kroto
\nC) Richard E. Smalley
\nD) All of these
\nAnswer:
\nD) All of these<\/p>\n

Question 35.
\nBucky balls are ………………. fullerences.
\nA) cylindrical
\nB) spherical
\nC) conical
\nD) elliptical
\nAnswer:
\nB) spherical<\/p>\n

Question 36.
\nThe shape of Buckminster fullerene is ………………..
\nA) soccer ball
\nB) cricket ball
\nC) basket ball
\nD) base ball
\nAnswer:
\nA) soccer ball<\/p>\n

Question 37.
\nThe pentagonal and hexagonal faces in Buckminster fullerene are ……………… and ………………. respectively.
\nA) 12, 20
\nB) 20,12
\nC) 12,18
\nD) 18,12
\nAnswer:
\nA) 12, 20<\/p>\n

Question 38.
\nThe hybridisation present in Buckminster fullerene is ……………….
\nA) sp3<\/sup>
\nB) sp2<\/sup>
\nC) sp
\nD) sp3<\/sup>d2<\/sup>
\nAnswer:
\nB) sp2<\/sup><\/p>\n

Question 39.
\n……. is useful in curing melanoma cancer.
\nA) Diamond
\nB) Graphite
\nC) Fullerene
\nD) Nano tube
\nAnswer:
\nC) Fullerene<\/p>\n

Question 40.
\nNano tubes were discovered by …………………
\nA) H. W. Kroto
\nB)-RE. Smalley
\nC) Sumi Li Jima
\nD) R. F. Curl
\nAnswer:
\nC) Sumi Li Jima<\/p>\n

Question 41.
\nThe uses of nano tubes are
\ni) used as molecular wires
\nii) used in integrated circuits instead of copper
\niii) biomolecules are inserted into nano tubes to inject them into a single cell
\nA) only i
\nB) both i and ii
\nC) i, ii and iii
\nD) none of these
\nAnswer:
\nC) i, ii and iii<\/p>\n

Question 42.
\nGraphene is extracted from
\nA) graphite
\nB) diamond
\nC) nano tube
\nD) coal
\nAnswer:
\nA) graphite<\/p>\n

Question 43.
\n…………. conducts electricity better than copper
\nA) Graphite
\nB) Graphene
\nC) Nano tubes
\nD) Buckminster fullerene
\nAnswer:
\nB) Graphene<\/p>\n

Question 44.
\n…………… named the compounds derived from living organisms as organic compound
\nA) Wohler
\nB) Berzelius
\nC) Lewis
\nD) Pauling
\nAnswer:
\nB) Berzelius<\/p>\n

Question 45.
\nThe first synthetic carbon compound is …….. and it was prepared by …………
\nA) Acetic acid, Wohler
\nB) Alcohol, Berzelius
\nC) Urea, Wohler
\nD) Dimethyl, Lewis
\nAnswer:
\nC) Urea, Wohler<\/p>\n

\"AP<\/p>\n

Question 46.
\nThe formula of Urea is
\nA) NH4<\/sub>CNO
\nB) CO(NH2<\/sub>)2<\/sub>
\nC) CH3<\/sub>CONH2<\/sub>
\nD) C3<\/sub>H7<\/sub>NH2<\/sub>
\nAnswer:
\nB) CO(NH2<\/sub>)2<\/sub><\/p>\n

Question 47.
\nThe formula of ammonium cyanate is ……………..
\nA) NH4<\/sub>CNO
\nB) CO(NH2<\/sub>)2<\/sub>
\nC) CH3<\/sub>COONa
\nD) CH3<\/sub>NH2<\/sub>
\nAnswer:
\nA) NH4<\/sub>CNO<\/p>\n

Question 48.
\nThe ability to form longest chains with its own atoms is ………..
\nA) Allotropy
\nB) Isomerism
\nC) Catenation
\nD) Combustion
\nAnswer:
\nC) Catenation<\/p>\n

Question 49.
\nThe following elements show catenation.
\nA) carbon
\nB) sulphur
\nC) phosphorous
\nD) all of these
\nAnswer:
\nD) all of these<\/p>\n

Question 50.
\nThe properties which made carbon as versatile element
\ni) Tetra valency
\nii) Catenation
\niii) Isomerism
\niv) Formation of multiple bonds
\nA) only i
\nB) only ii
\nC) both i and ii
\nD) All of these
\nAnswer:
\nD) All of these<\/p>\n

Question 51.
\nThe hardest material among the allotropes of carbon is
\nA) diamond
\nB) graphite
\nC) coke
\nD) coal
\nAnswer:
\nA) diamond<\/p>\n

Question 52.
\nWhich of the following is not an electric conductor?
\nA) nano tube
\nB) graphene
\nC) diamond
\nD) graphite
\nAnswer:
\nC) diamond<\/p>\n

Question 53.
\nIn integrated circuit ………….. are used instead of copper to connect the components together
\nA) graphite
\nB) C60<\/sub>
\nC) nano tubes
\nD) PVC
\nAnswer:
\nC) nano tubes<\/p>\n

CONCEPT – III : Hydro Carbons<\/span><\/p>\n

Question 54.
\nHydrocarbons contains the following elements
\nA) H, C
\nB) H, CO
\nC) N, C
\nD) H, Cl
\nAnswer:
\nA) H, C<\/p>\n

Question 55.
\nThe characteristic properties of an organic compound which depend on atom or group of atoms in its molecule is known as …………………
\nA) standard group
\nB) functional group
\nC) associate group
\nD) alkyl group
\nAnswer:
\nB) functional group<\/p>\n

Question 56.
\nThe phenomenon of possessing same molecular formula but different properties by compounds in known as ……..
\nA) Allotropy
\nB) Catenation
\nC) Isomerism
\nD) Combustion
\nAnswer:
\nC) Isomerism<\/p>\n

Question 57.
\nWhich of the following is a saturated hydrocarbon?
\nA) C2<\/sub>H4<\/sub>
\nB) C2<\/sub>H2<\/sub>
\nC) C3<\/sub>H6<\/sub>
\nD) C2<\/sub>H6<\/sub>
\nAnswer:
\nD) C2<\/sub>H6<\/sub><\/p>\n

Question 58.
\nThe general formula of alkynes is
\nA) C2<\/sub>H2n+2<\/sub>
\nB) Cn<\/sub>H2n-2<\/sub>
\nC) Cn<\/sub>H2n<\/sub>
\nD) Cn<\/sub>H2n+1<\/sub>
\nAnswer:
\nB) Cn<\/sub>H2n-2<\/sub><\/p>\n

Question 59.
\nMatch the following :
\na) Alkanes — i) Hydrocarbons containing double bonds
\nb) Alkenes — ii) Hydrocarbons containing triple bonds
\nc) Alkynes — iii) Hydrocarbons containing single bonds
\nA) a \u2192 i, b \u2192 iii, c \u2192 ii
\nB) a \u2192 i, b \u2192 ii, c \u2192 iii
\nC) a \u2192 iii, b \u2192 i, c \u2192 ii
\nD) a \u2192 ii, b \u2192 iii, c \u2192 i
\nAnswer:
\nC) a \u2192 iii, b \u2192 i, c \u2192 ii<\/p>\n

Question 60.
\nMatch the following :
\na) Alkanes i) C2<\/sub>H2n-2<\/sub>
\nb) Alkenes ii) C2<\/sub>H2n+2<\/sub>
\nc) Alkynes iii) C2<\/sub>H2n<\/sub>
\nA) a \u2192 ii, b \u2192 iii, c \u2192 i
\nB) a \u2192 i, b \u2192 ii, c \u2192 iii
\nC) a \u2192 iii, b \u2192 ii, c \u2192 i
\nD) a \u2192 iii, b \u2192 i, c \u2192 ii
\nAnswer:
\na) Alkanes i) C2<\/sub>H2n-2<\/sub><\/p>\n

Question 61.
\nThe hydrocarbon having single bonds between the carbon atoms is ……………
\nA) Ethane
\nB) Ethene
\nC) Propene
\nD) Butyne
\nAnswer:
\nA) Ethane<\/p>\n

\"AP<\/p>\n

Question 62.
\nThe number of hydrogen atoms in octane is ………………
\nA) 8
\nB) 18
\nC) 16
\nD) 14
\nAnswer:
\nB) 18<\/p>\n

Question 63.
\nTo detect the leakage of gas from the cylinder the substance added to the gas is……..
\nA) C2<\/sub>H5<\/sub>SH
\nB) C2<\/sub>H5<\/sub>OH
\nC) CH3<\/sub>COOH
\nD) CH3<\/sub>CHO
\nAnswer:
\nA) C2<\/sub>H5<\/sub>SH<\/p>\n

Question 64.
\nWhich of the following compound is not a hydrocarbon ?
\nA) R\u2014CH3<\/sub>
\nB) RCH \u2014CH2<\/sub>
\nC) RCH2<\/sub>OH
\nD) CH3<\/sub>CH = CH2<\/sub>
\nAnswer:
\nB) RCH \u2014CH2<\/sub><\/p>\n

CONCEPT – 4 : Nomenclature of Hydrocarbons<\/span><\/p>\n

Question 65.
\nIUPAC name of alkene containing 3 carbon atoms is ………………..
\nA) ethene
\nB) propene
\nC) butene
\nD) pentene
\nAnswer:
\nB) propene<\/p>\n

Question 66.
\nCarbon compounds containing double bonds and triple bonds are called ………….. hydrocarbons.
\nA) saturated
\nB) unsaturated
\nC) super saturated
\nD) none of these
\nAnswer:
\nB) unsaturated<\/p>\n

Question 67.
\nNumber of single covalent bonds in ammonia is . …………..
\nA) 1
\nB) 2
\nC) 3
\nD) 4
\nAnswer:
\nC) 3<\/p>\n

Question 68.
\nWhich one of the following hydrocarbon can show isomerism
\nA) C2<\/sub>H4<\/sub>
\nB) C2<\/sub>H6<\/sub>
\nC) C3<\/sub>H8<\/sub>
\nD) C4<\/sub>H10<\/sub>
\nAnswer:
\nD) C4<\/sub>H10<\/sub><\/p>\n

Question 69.
\nThe number of structural isomers for pentane is
\nA) 2
\nB) 3
\nC) 4
\nD) 5
\nAnswer:
\nB) 3<\/p>\n

Question 70.
\nThe series of carbon compounds in which two successive compounds differ -CH2<\/sub> unit is called …………..
\nA) Reactivity series
\nB) Homologous series
\nC) Lyman series
\nD) Balmer series
\nAnswer:
\nB) Homologous series<\/p>\n

Question 71.
\nMatch the following:
\na) Alcohol — i) \u2014 CHO
\nb) Aldehyde — ii) OH
\nc) Ketone — iii) COOH
\nd) Acid — iv) C0
\nA) a \u2192 i1b \u2192ii,c \u2192iii,d \u2192iv
\nB) a \u2192iv,b \u2192iii,c \u2192ii,d \u2192i
\nC) a \u2192ii,b \u2192i,c \u2192iv,d \u2192iii
\nD)a \u2192iv,b \u2192ii,c \u2192iii,d \u2192i
\nAnswer:
\nC) a \u2192ii,b \u2192i,c \u2192iv,d \u2192iii<\/p>\n

Question 72.
\nMatch the following
\na) Butanol — i) CH3<\/sub>-CH2<\/sub>-CH2<\/sub>-CH2<\/sub>-COOH
\nb) Pentanoic acid — ii) CH3<\/sub> – CH2<\/sub> – CH2<\/sub> – CH2<\/sub> – CH2<\/sub>– CHO
\nc) Propanone — iii) CH3<\/sub>-CH2<\/sub>-CH2<\/sub>-CH2<\/sub>-OH
\nd) Hexanal — iv) CH3<\/sub>COCH3<\/sub>
\nA) a \u2192 i,b \u2192 ii,c \u2192 iii,d \u2192 iv
\nB) a \u2192 iv,b \u2192 iii,c \u2192 ii,d \u2192 i
\nC) a \u2192 iii,b \u2192 i,c \u2192 iv,d \u2192 ii
\nD) a \u2192 iv,b \u2192 ii,c \u2192 iii,d \u2192 i
\nAnswer:
\nC) a \u2192 iii,b \u2192 i,c \u2192 iv,d \u2192 ii<\/p>\n

Question 73.
\nA compound which is a basic constituent of many cough syrups
\nA) Methanol
\nB) Ethanol
\nC) Ethyl alcohol
\nD) Both B and C .
\nAnswer:
\nD) Both B and C .<\/p>\n

Question 74.
\nVery dilute solution of ethanoic acid is …………..
\nA) Vinegar
\nB) Baking soda
\nC) Washing soda
\nD) Quick lime
\nAnswer:
\nA) Vinegar<\/p>\n

Question 75.
\nThe functional group present in methanol is ……….
\nA) Alcohol
\nB) Aldehyde
\nC) Acid
\nD) Ketone
\nAnswer:
\nA) Alcohol<\/p>\n

\"AP<\/p>\n

Question 76.
\nThe first member of homologous series among alkynes is ………………..
\nA) Methyne
\nB) Ethyne
\nC) Propyne
\nD) Butyne
\nAnswer:
\nB) Ethyne<\/p>\n

Question 77.
\nThe suffix used for naming aldehyde is ………….
\nA) \u2014 ol
\nB) \u2014 al
\nC) \u2014 one
\nD) \u2014 ene
\nAnswer:
\nB) \u2014 al<\/p>\n

Question 78.
\n\u2014NH2<\/sub> group is called …………….
\nA) ester
\nB) ether
\nC) amine
\nD) amide
\nAnswer:
\nC) amine<\/p>\n

Question 79.
\nCombustion of hydrocarbon is generally accompanied by the evolution of ……………..
\nA) heat
\nB) light
\nC) both heat and light
\nD) electric current
\nAnswer:
\nC) both heat and light<\/p>\n

Question 80.
\nOxidation of ethyl alcohol forms
\nA) ethanoic acid
\nB) acetic acid
\nC) formic acid
\nD) both A and B
\nAnswer:
\nD) both A and B<\/p>\n

Question 81.
\nThe oxidizing agent used for conversion of alcohols to carboxylic acids is …………….
\nA) Alkaline potassium dichromate
\nB) Manganese dioxide
\nC) Acidified potassium dichromate
\nD) Both A and C
\nAnswer:
\nD) Both A and C<\/p>\n

Question 82.
\nThe catalyst used in hydrogenation of oils is ………………..
\nA) Pd
\nB) Pt
\nC) Ni
\nD) Co
\nAnswer:
\nC) Ni<\/p>\n

Question 83.
\nUnsaturated organic compounds participate in …………….. reactions.
\nA) substitution
\nB) addition
\nC) elimination
\nD) rearrangement
\nAnswer:
\nB) addition<\/p>\n

Question 84.
\nA reaction in which an atom or a group of atoms in a compound is replaced by other atom or group of atoms is called
\n……………… reaction.
\nA) addition
\nB) elimination
\nC) substitution
\nD) rearrangement
\nAnswer:
\nC) substitution<\/p>\n

Question 85.
\nParaffins are ………………..
\nA) Alkanes
\nB) Alkenes
\nC) Alkynes
\nD) Alcohols
\nAnswer:
\nA) Alkanes<\/p>\n

Question 86.
\nSaturated hydrocarbons (Alkanes) participate in ……………… reactions.
\nA) addition
\nB) substitution
\nC) elimination
\nD) rearrangement
\nAnswer:
\nB) substitution<\/p>\n

Question 87.
\nThe process of conversion of starches and sugars to ethyl alcohol is called ……………..
\nA) carbonisation
\nB) esterification
\nC) condensation
\nD) fermentation
\nAnswer:
\nD) fermentation<\/p>\n

Question 88.
\n2 – Methyl propane is also called
\nA) Iso propane
\nB) n-butane
\nC) n – propane
\nD) Isobutane
\nAnswer:
\nD) Isobutane<\/p>\n

Question 89.
\nThe IUPAC name of
\nHO – CH2<\/sub>– CH2<\/sub>– CH2<\/sub>– COOH.
\nA) 1 – hydroxy – 4 -butanoic acid
\nB) 4 – carboxyl – 1 – butanol
\nC) 3 – hydroxy -1- propanoic acid
\nD) 4 – hydroxy -1 – butanoic acid
\nAnswer:
\nD) 4 – hydroxy -1 – butanoic acid<\/p>\n

Question 90.
\nEsters are dervivatives of ………………….
\nA) Ketones
\nB) Alcohols
\nC) Ethers
\nD) Carboxylic acids
\nAnswer:
\nD) Carboxylic acids<\/p>\n

Question 91.
\nThe name of the structure
\nCH3<\/sub> – CH = C = CH2<\/sub> is
\nA) Butene
\nB) Buta – 1, 2 – diene
\nC) Butadiene
\nD) 1, 3 – butadiene
\nAnswer:
\nB) Buta – 1, 2 – diene<\/p>\n

Question 92.
\nCH3<\/sub> – NH – CH3<\/sub> is known as
\nA) primary amine
\nB) teritituted amine
\nC) secondary amine
\nD) quaternary ammonium salt
\nAnswer:
\nC) secondary amine<\/p>\n

\"AP<\/p>\n

Question 93.
\nThe general formula of ester is
\nA) R – O – R
\nB) R – CO – R
\nC) R-COOR
\nD) R – CHO
\nAnswer:
\nC) R-COOR<\/p>\n

Question 94.
\nThe functional group in ketone is
\nA) \"AP
\nB) \u2014COOH
\nC) \u2014OH
\nD) \u2014 COOR
\nAnswer:
\nA) \"AP<\/p>\n

Question 95.
\nThe functional group which is recognised as alcohol is
\nA) \u2014CHO
\nB) \u2014OH
\nC) \u2014CO
\nD) \u2014COOH
\nAnswer:
\nB) \u2014OH<\/p>\n

Question 96.
\nThe unsaturated hydrocarbon that contains multiple bonds undergo the following type of reaction to become a saturated hydrocarbon.
\nA) combustion
\nB) addition
\nC) oxidation
\nD) substitution
\nAnswer:
\nB) addition<\/p>\n

Question 97.
\nIf CH3<\/sub> – CH2<\/sub> – CH2<\/sub> – COOH is the IUPAC structure of carbon compound, then the carbon compound is
\nA) Butene
\nB) Butanol
\nC) Butanoic acid
\nD) But – 1 – ene
\nAnswer:
\nC) Butanoic acid<\/p>\n

Question 98.
\nIf the carbon compound has many functional groups, then the order of preference while naming according to IUPAC nomenclature is
\nA) CONH2<\/sub> > CHO > NH2<\/sub> > \u2014 COOH
\nB) \u2014 COOH >CONH2<\/sub> > CHO NH2<\/sub>
\nC) \u2014 CHO > CONH2<\/sub> > COOH > NH2<\/sub>
\nD) \u2014 COOH > CHO > NH2<\/sub> > CONH2<\/sub>
\nAnswer:
\nB) \u2014 COOH >CONH2<\/sub> > CHO NH2<\/sub><\/p>\n

Question 99.
\nThe IUPAC name of
\nNH2<\/sub> – CH2<\/sub> – CHOH – CH2<\/sub> – COOH is
\nA) 1 – amino – 2 hydroxy butanoic acid
\nB) 3 – hydroxy – 4 – amino butanoic acid
\nC) 4 – amino – 3 – hydroxy butanoic acid
\nD) 1 – amino – 3 – hydroxy butyric acid
\nAnswer:
\nC) 4 – amino – 3 – hydroxy butanoic acid<\/p>\n

Question 100.
\nIUPAC name of Cl3<\/sub>C – CH2<\/sub> – CHO
\nA) 3, 3, 3 – trichloro propanal
\nB) 3, 3, 3 – trichloro propanol
\nC) 1,1,1 – trichloro propanol
\nD) 1,1,1 – trichloro propanal
\nAnswer:
\nA) 3, 3, 3 – trichloro propanal<\/p>\n

Question 101.
\nIUPAC name of
\n\"AP
\nA) chloro butane
\nB) 2 – chloro butane
\nC) 2, 3 – chloro butane
\nD) 2, 3 – dichloro butane
\nAnswer:
\nD) 2, 3 – dichloro butane<\/p>\n

Question 102.
\nSimplest ketone is
\nA) CH3<\/sub>COCHg
\nB) CH3<\/sub>COCH2<\/sub>CH3<\/sub>
\nc) CH3<\/sub>COCH2<\/sub>CH2<\/sub>CH3<\/sub>
\nD) CH3<\/sub>CH2<\/sub>CHO
\nAnswer:
\nA) CH3<\/sub>COCHg<\/p>\n

Question 103.
\nSimplest acid is
\nA) Ethanoic acid
\nB) Methanoic acid
\nC) Propanoic acid
\nD) Butanoic acid
\nAnswer:
\nB) Methanoic acid<\/p>\n

Question 104.
\nThe IUPAC name of following structure is
\n\"AP
\nA) 2 – chloro – butanoic acid
\nB) 3 – chloro butanoic acid
\nC) 3 – chloro – pentanoic acid
\nD) 2 – chloro pentanoic acid
\nAnswer:
\nB) 3 – chloro butanoic acid<\/p>\n

CONCEPT – 5 : Some Important Carbon Compounds<\/span><\/p>\n

Question 105.
\nMatch the following:
\na) Methyl chloride i) CHCl3<\/sub>
\nb) Methylene chloride ii) CH3<\/sub>Cl
\nc) Chloroform iii) CH2<\/sub>Cl2<\/sub>
\nd) Carbon tetra chloride iv) CCl4<\/sub>
\nA) a \u2192 i, b \u2192 ii, c \u2192 iii, d \u2192 iv
\nB) a \u2192 iv, b \u2192 iii, c \u2192 ii, d \u2192 i
\nC) a \u2192 iv, b \u2192 iii, c \u2192 i, d \u2192 ii
\nD) a \u2192 ii, b \u2192 iii, c \u2192 i, d \u2192 iv
\nAnswer:
\nD) a \u2192 ii, b \u2192 iii, c \u2192 i, d \u2192 iv<\/p>\n

Question 106.
\nMatch the following:
\na) Ethanol i) Acetic acid
\nb) Ethanoic acid ii) Acetaldehyde
\nc) Ethanal iii) Chloroform
\nd) Trichloro iv) Ethyl alcohol
\nmethane
\nA) a \u2192 i, b \u2192 ii, c \u2192 iii, d \u2192 iv
\nB) a \u2192 iv, b \u2192 iii, c \u2192 ii, d \u2192 iv
\nC) a \u2192 iii, b \u2192 ii, c. \u2192 iv, d \u2192 i
\nD) a \u2192 iv, b \u2192 i, c \u2192 ii, d \u2192 iii
\nAnswer:
\nD) a \u2192 iv, b \u2192 i, c \u2192 ii, d \u2192 iii<\/p>\n

Question 107.
\nPure ethanol is called …………….
\nA) absolute alcohol
\nB) rectified spirit
\nC) denaturated spirit
\nD) None of these
\nAnswer:
\nA) absolute alcohol<\/p>\n

Question 108.
\nDenaturated alcohol is ethanol that contains impurities like ……………..
\nA) Methanol
\nB) Methyl isobutyl ketone
\nC) Aviation gasoline
\nD) All of these
\nAnswer:
\nD) All of these<\/p>\n

Question 109.
\nWhen sodium metal is dropped in ethanol ………………. gas will be released.
\nA) Oxygen
\nB) Hydrogen
\nC) Chlorine
\nD) Nitrogen
\nAnswer:
\nB) Hydrogen<\/p>\n

Question 110.
\nThe product that is formed by dehydration of ethanol in concentrated sulphuric acid is ……………….
\nA) Ethane
\nB) Ethene
\nC) Ethyne
\nD) Ethanal
\nAnswer:
\nB) Ethene<\/p>\n

Question 111.
\nWhich of the four tubes containing
\nfollowing chemicals show the brisk effervescence when dilute acetic acid is added to them ?
\ni) KOH
\nii) NaHCO3<\/sub>
\niii) K2<\/sub>CO3<\/sub>
\niv) NaCl
\nA) i & ii
\nB) ii & iii
\nC) i&iv
\nD) i & iii
\nAnswer:
\nB) ii & iii<\/p>\n

Question 112.
\nA sweet odour substance formed by reaction of an alcohol and carboxylic acid is ……………………..
\nA) Ether
\nB) Aldehyde
\nC) Ketone
\nD) Ester
\nAnswer:
\nD) Ester<\/p>\n

Question 113.
\nWhich of the following solution of acetic acid in water can be used as preservative.
\nA) 5 -10 %
\nB) 10 -15 %
\nC) 15 – 20 %
\nD) 100 %
\nAnswer:
\nA) 5 -10 %<\/p>\n

\"AP<\/p>\n

Question 114.
\nAcetic acid, when dissolved in water, dissociates into ions reversibly because it is a
\nA) weak acid
\nB) strong acid
\nC) weak base
\nD) strong base
\nAnswer:
\nA) weak acid<\/p>\n

Question 115.
\n2 ml of ethanoic acid was taken in three test tubes A, B and C and 2 ml, 4 ml and 8 ml water was added to them respectively. A clean solution is obtained in
\nA) Test tube A only
\nB) Test tubes A & B only
\nC) Test tubes B & C only
\nD) All the test tubes
\nAnswer:
\nD) All the test tubes<\/p>\n

Question 116.
\nIf 2 ml of acetic acid is added slowly in drops to 5 ml of water then we will notice
\nA) the acid forms a separate layer on the top of water
\nB) water forms a separate layer on the top of the acid
\nC) formation of clear and homogeneous solution
\nD) formation of pink and clear solution
\nAnswer:
\nC) formation of clear and homogeneous solution<\/p>\n

Question 117.
\nA few drops of ethanoic acid were added to sodium carbonate. The possible results of the reaction :
\nA) A hissing sound was evolved
\nB) Brown fumes evolved
\nC) Brisk effervescence occurred
\nD) A pungent smelling gas evolved
\nAnswer:
\nC) Brisk effervescence occurred<\/p>\n

Question 118.
\nWhen acetic acid reacts with ethyl o alcohol, we add coiic.H2<\/sub>S04<\/sub> . It acts as and the process is called
\nA) oxidizing agent, saponification
\nB) dehydrating agent, esterification
\nC) reducing agent, esterification
\nD) acid and esterification
\nAnswer:
\nB) dehydrating agent, esterification<\/p>\n

Question 119.
\nThe strength of acids may be expressed in terms of
\nA) H+<\/sup> ion concentration
\nB) pH
\nC) PKa<\/sub>
\nD) all of these
\nAnswer:
\nD) all of these<\/p>\n

Question 120.
\nSodium or potassium salt of fatty acid is……
\nA) soap
\nB) detergent
\nC) indicator
\nD) soda
\nAnswer:
\nA) soap<\/p>\n

Question 121.
\nMatch the following
\na) Palmitric acid — i) C17<\/sub>H35<\/sub>COOH
\nb) Stearic acid — ii) C17<\/sub>H33<\/sub>COOH
\nc) Oleic acid — iii) C17<\/sub>H31<\/sub>COOH
\nA) a \u2192 i, b \u2192 ii, c \u2192 iii
\nB) a \u2192 iii, b ii, c \u2192 i
\nC) a \u2192 iii, b \u2192 i, c \u2192 ii
\nD) a \u2192 ii, b \u2192 iii, c \u2192 i ‘
\nAnswer:
\nC) a \u2192 iii, b \u2192 i, c \u2192 ii<\/p>\n

Question 122.
\nAlkaline hydrolysis of tri esters of higher fatty acids producing soaps is called
\nA) esterification
\nB) hydrolysis
\nC) saponification
\nD) neutralization
\nAnswer:
\nC) saponification<\/p>\n

Question 123.
\nRavi added acid to the metal hydrogen carbonate and observed the gas evolved. The evolved gasis
\nA) O2<\/sub>
\nB) N2<\/sub>
\nC) H2<\/sub>
\nD) CO2<\/sub>
\nAnswer:
\nD) CO2<\/sub><\/p>\n

Question 124.
\nThe carboxylic acid used to preserve pickles is
\nA) Methanoic acid
\nB) Propanoic acid
\nC) Ethanoic acid
\nD) Butanoic acid
\nAnswer:
\nC) Ethanoic acid<\/p>\n

Question 125.
\nCH3<\/sub> \u2014 CH2<\/sub> \u2014 OH reacts with alkaline KMnO4<\/sub> and heats to form first the compound A, which futher oxidises to form a compound B. The name of compound B is
\nA) Ethanol
\nB) Ethanal .
\nC) Formaldehyde
\nD) Acetic acid
\nAnswer:
\nD) Acetic acid<\/p>\n

Question 126.
\nBut – 2 – yne reacts with H2<\/sub> in the presence of ‘NT catalyst to form But -1 – ene. This reaction is an example of ………………….
\nA) substitution reaction
\nB) addition reaction
\nC) elimination reaction
\nD) rearrangement reaction
\nAnswer:
\nB) addition reaction<\/p>\n

Question 127.
\nWhich of the following organic compounds undergoes substitution reaction ?
\nA) Alkanes
\nB) Alkenes
\nC) Alkynes
\nD) All
\nAnswer:
\nA) Alkanes<\/p>\n

Question 128.
\nWhich of the following substitution products is not formed when methane reacts with chlorine in sunlight ?
\nA) chloroform
\nB) carbon chloride
\nC) methylene chloride
\nD) ethyl chloride
\nAnswer:
\nD) ethyl chloride<\/p>\n

Question 129.
\nThe process of conversion of starch and sugar into ethanol by using enzymes is called
\nA) Fermentation
\nB) Esterification
\nQ Carbonization
\nD) Pyrolysis
\nAnswer:
\nA) Fermentation<\/p>\n

Question 130.
\nThe sweet odour substance formed by the reaction of an alcohol and carboxylic acid is
\nA) ester
\nB) amine
\nC) ether
\nD) aldehyde
\nAnswer:
\nA) ester<\/p>\n

Question 131.
\nThe general formula of alcohol is
\nA) Cn<\/sub>H2n+1<\/sub>OH
\nB) Cn<\/sub>H2n+1<\/sub>NH2<\/sub>
\nC) Cn<\/sub>H2n+1<\/sub>CH0
\nD)(Cn<\/sub>H2n+1<\/sub>)2<\/sub>O
\nAnswer:
\nA) Cn<\/sub>H2n+1<\/sub>OH<\/p>\n

\"AP<\/p>\n

Question 132.
\nIn combustion of alkane the heat energy is
\nA) absorbed
\nB) liberated
\nC) neither absorbed nor liberated
\nD) depends on alkane
\nAnswer:
\nB) liberated<\/p>\n

CONCEPT VI: Soap – Saponification Micelle<\/p>\n

Question 133.
\nA spherical aggregate of soap molecule in water is called …………….
\nA) nucleus
\nB) cell nucleus
\nC) micelle
\nD) none of these
\nAnswer:
\nC) micelle<\/p>\n

Question 134.
\nCMC means
\nA) Critical Molar Concentration
\nB) Conical Molar Concentration
\nC) Critical Micelle Concentration
\nD) Conical Micelle Concentration
\nAnswer:
\nC) Critical Micelle Concentration<\/p>\n

Question 135.
\nIn true solution the solute particle diameter is
\nA) more than 1 nm
\nB) less than 1 nm
\nC) equal to 1nm
\nD) none of these
\nAnswer:
\nB) less than 1 nm<\/p>\n

Question 136.
\nThe polar end in micelle ……………… in nature.
\nA) hydrophilic
\nB) hydrophobic
\nC) isochoric
\nD) isothermal
\nAnswer:
\nA) hydrophilic<\/p>\n

Question 137.
\nThe non polar end in micelle is ……………. in nature.
\nA) hydrophilic
\nB) hydrophobic
\nC) isochoric
\nD) Isothermal
\nAnswer:
\nB) hydrophobic<\/p>\n

Question 138.
\nThe carboxyl end in micelle is …………….. in nature.
\nA) polar
\nB) non- polar
\nC) both
\nD) none of these
\nAnswer:
\nA) polar<\/p>\n

Question 139.
\nThe hydrocarbon chain in micelle is ……………. in nature.
\nA) polar
\nB) non-polar
\nC) both
\nD) none of these
\nAnswer:
\nB) non-polar<\/p>\n","protected":false},"excerpt":{"rendered":"

Practice the AP 10th Class Physical Science Bits with Answers Chapter 12 Carbon and its Compounds on a regular basis so that you can attempt exams with utmost confidence. AP State Syllabus 10th Class Physical Science Bits 12th Lesson Carbon and its Compounds with Answers Concept – 1 : Versatile Nature of Carbon Question 1. …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[12],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/15925"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=15925"}],"version-history":[{"count":0,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/15925\/revisions"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=15925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=15925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=15925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}