AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers

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AP State Syllabus 8th Class Physical Science Bits 7th Lesson Coal and Petroleum with Answers

Choose the correct answer.

Question 1.
………. is called black gold.
A) Coal
B) Petroleum
C) Natural gas
D) None of these
Answer:
B) Petroleum

Question 2.
………. gas obtained during the processing of coal to get coke.
A) Coal
B) LPG
C) CNG
D) None of these
Answer:
A) Coal

Question 3.
Coal fired power plants emits
A) magnesium
B) aluminium
C) mercury
D) silicon
Answer:
C) mercury

Question 4.
……….. is inexhaustible source of energy in the given below.
A) Coal
B) Solar energy
C) Petroleum
D) Natural gas
Answer:
B) Solar energy

Question 5.
……….. is a mixture of 200 substances.
A) Coal
B) Coal gas
C) Carbon
D) Coal tar
Answer:
D) Coal tar

Question 6.
CNG means ………..
A) condensed natural gas
B) compressed natural gas
C) complete natural gas
D) condemned natural gas
Answer:
B) compressed natural gas

Question 7.
Purest form of carbon is called
A) coal
B) charcoal
C) lamp black
D) coke
Answer:
D) coke

Question 8.
……….. use wind energy to produce current.
A) Panels
B) Wind guage
C) Wind mill
D) None of these
Answer:
C) Wind mill

Question 9.
Napthalene is obtained from
A) coal
B) coal gas
C) coal tar
D) none of these
Answer:
C) coal tar

Question 10.
Why does we call coal and petrol are exhaustible resources?
A) They are limited in stock
B) They cannot produce immediately
C) They emits pollution
D) Both A and B
Answer:
D) Both A and B

Question 11.
What will happen if there is no petrol and coal?
A) Ail the vehicles, now available, will become useless.
B) Thermal power plants will shut down.
C) Transportation charges will increases.
D) Above all
Answer:
D) Above all

Question 12.
Petroleum components are separated by a technique called
A) distillation
B) evaporation
C) sublimation
D) fractional distillation
Answer:
D) fractional distillation

Question 13.
Process of conversion of dead vegetation into coal is called
A) hydrogenation
B) calcination
C) carbonisation
D) oxidation
Answer:
C) carbonisation

Question 14.
Separation of petroleum products from petroleum is called ……….
A) refinery
B) distillation
C) poling
D) liquification
Answer:
A) refinery

Question 15.
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 1
This experiment shows
A) Burning of coal gas
B) Burning of petrol
C) Burning of coke gas
D) None
Answer:
A) Burning of coal gas

Question 16.
Metals are extracted from
A) petrochemicals
B) dried up trees
C) sand
D) ores
Answer:
D) ores

Question 17.
More pollutant among fossil fuels is
A) coal
B) petroleum
C) natural gas
D) none of these
Answer:
A) coal

Question 18.
……….. balls repel moths and other insects.
A) Benzene
B) Naphthalene
C) Anthoacene
D) Acitene
Answer:
B) Naphthalene

Question 19.
……… is exhaustible source among these.
A) solar energy
B) wind energy
C) tidal energy
D) natural gas
Answer:
D) natural gas

Question 20.
……… is used for extraction of metals.
A) Coal
B) Coke
C) Coal tar
D) Coal gas
Answer:
B) Coke

Question 21.
Choose correct option to sure matching.
Group – A — Group – B
1. Exhaustible source — a) Naphthalene
2. Inexhaustible source — b)Extraction of metals
3. Coal tar — c) Tidal energy
4. Coke — d)Lighting )
5. Coal gas — e) Natural gas
A) 1 – a, 2 – b, 3 – d, 4 – c, 5 – e
B) 1 – e, 2 – c, 3 – a, 4 – b, 5 – d
C) 1 – c, 2 – e, 3 – b, 4 – d, 5 – a
D) 1 – d, 2 – b, 3 – a, 4 – e, 5 – c
Answer:
B) 1 – e, 2 – c, 3 – a, 4 – b, 5 – d

Question 22.

Material	How is it obtained ?
Glass	By melting sand with other materials and then, cooling it rapidly
Clay	By mixing the mineral kaolinite with water
Wood	From dried up trees
Plastics	From petrochemicals
Metals	From their respective ores

Plastic tables and plastic chairs are made with
A) Petroleum
B) Coal
C) Natural gas
D) Trees
Answer:
A) Petroleum

Question 23.
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 2
Coal is used to manufacture
A) Napthalene
B) Paints
C) Kerosene
D) Both A and B
Answer:
D) Both A and B

Question 24.
This is not a product of petroleum
A) Candle
B) LPG
C) Petrol
D) Naphthalene
Answer:
A) Candle

Question 25.
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 3
Given figure is an example for ………. type of energy resource.
A) natural
B) renewable
C) non-renewable
D) both A and B
Answer:
D) both A and B

Question 26.
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 4
Part ‘a’ is
A) Boiling tube
B) Delivery tube
C) Jet tube
D) Stand
Answer:
B) Delivery tube

Question 27.
Liquid gold is
A) Petrol
B) Coal
C) Petroleum
D) Kerosene
Answer:
C) Petroleum

Question 28.
These microbes, which were produced petroleum are appreciable
A) Plankton
B) Dengue
C) Sea animals
D) Starfish
Answer:
A) Plankton

Question 29.
………… is exhaustible fuel among the fuels given below.
A) Solar energy
B) Wind energy
C) Coal
D) Tidal energy
Answer:
C) Coal

Question 30.
Solar energy ……….. source of energy.
A) exhaustible
B) inexhaustible
C) both
D) none of these
Answer:
B) inexhaustible

Question 31.
Coal, petroleum and natural gas are called ……… fuels.
A) fossil
B) natural
C) artificial
D) none of these
Answer:
A) fossil

Question 32.
……….. is used in the manufacture of steel and extraction of many metals.
A) Nickel
B) Cobalt
C) Zinc
D) Coke
Answer:
D) Coke

Question 33.
……….. is used for lighting.
A) Coal
B) Coke
C) Coal tar
D) Coal gas
Answer:
D) Coal gas

Question 34.
This product of ‘coal’ protects from moths and insects to our clothes
A) Napthelene
B) Vaseline
C) Wax
D) Paints
Answer:
A) Napthelene

Question 35.
Global warming is caused by
A) O₂
B) CO₂
C) N₂
D) H₂O
Answer:
B) CO₂

Question 36.
Coal fired power plants (thermal power plants) emits
A) Mercury
B) Selenium
C) Arsenic
D) Above all
Answer:
D) Above all

Question 37.
Which of the following is not harmful to our health?
A) Solar power stations
B) Thermal power station
C) Hydrel power stations
D) Both A and C
Answer:
D) Both A and C

Question 38.
This is not a product of paraffin wax
A) Face cream
B) Grease
C) Candle
D) Paints
Answer:
D) Paints

Question 39.
This is a renewable and non-toxic fuel
A) Bio fuels
B) Petroleum fuel
C) LPG
D) Above all
Answer:
A) Bio fuels

Question 40.
Complete the given analogy
Carbon dioxide : Global warming : : ………….. : Nausea
A) Sulphur dioxide
B) Toxic substances from paints
C) Oxygen
D) Hydrogen
Answer:
B) Toxic substances from paints

Question 41.
Which of die following is Gas fuel
A) LPG
B) Petrol
C) Coal
D) Diesel
Answer:
A) LPG

Question 42.
i) Solar energy ii) Petroleum
iii) Wind energy iv) Hydro energy
Which of the above are inexhaustible resources?
A) only (i)
B) (i) and (iii)
C) (i), (ii) and (iii)
D) (i), (iii) and (iv)
Answer:
D) (i), (iii) and (iv)

Question 43.
Which of the following is not obtained from coaltar?
A) Naphthalene
B) Dyes
C) Sugar
D) Pesticides
Answer:
C) Sugar

Question 44.
P) Take a hard boiling tube and fill it with coal. Arrange a rubber cork and pass delivery tube through rubber cork
Q) Brownish black colour gas released from test tube
R) Take a boiling tube and fill it with water
S) We can observe the white flame at the mouth of jet tube
The correct sequence of arranging the apparatus.
A)Q-R-S-P
B)P-R-Q-S
C)P-S-Q-R
D)P-Q-R-S
Answer:
B)P-R-Q-S

Question 45.
Write the precautions to be taken in conducting an experiment showing the burning of gas released by heating a high quality coal.
a) test tubes must be very hard
b) maintain distance from bunsen burner
c) heat the test tube by keeping in
A) a and b only
B) a and c only
C) a, b and c only
D) a only
Answer:
C) a, b and c only

Question 46.
Petrochemical which is used in our daily life and which is not very harmful?
A) LPG
B) Kerosene
C) Diesel
D) Coaltar
Answer:
A) LPG

(47-48)
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 5
Identify the correct answers.
Question 47.
The above table indicates
A) the increasing the energy consump-tion year by year
B) the increase in energy deficiency percentage
C) the decrease in energy deficiency percentage
D) the increasing energy needs year by year
Answer:
B) the increase in energy deficiency percentage

Question 48.
Write the difference in energy deficiency percentage from 1993 to 1996.
A) 0.3
B) 0.8
C) 1.1
D) 11
Answer:
C) 1.1

(49-50)
Read the following paragraph and answers.
Petrochemicals are obtained by the fractional distillation of petroleum. Different compounds are formed at different temperatures. The first product obtained from petroleum is kerosene. Asphalt is the residue formed in fractional distillation. We also can get petrol, diesel, etc. from petroleum.
Question 49.
Name the first compound formed from petroleum.
A) Diesel
B) Kerosene
C) Asphalt
D) Petrol
Answer:
B) Kerosene

Question 50.
Name the residue formed from petroleum.
A) Diesel
B) Petrol
C) Asphalt
D) Kerosene
Answer:
C) Asphalt

Question 51.
If the energy sources are consumed, they will be exhausted. Which of the following is an inexhaustible resource?
A) CNG gas
B) Petroleum
C) Wind power
D) Coal
Answer:
C) Wind power

Question 52.
a) Using drier in washing machine to dry the clothes even when sunlight is present.
b) Using petrol likes for a shorter distance without walking. The above two sentences indicate
A) Using Alternate energy sources
B) Using energy sources
C) Misusing energy sources
D) Using petrochemicals
Answer:
C) Misusing energy sources

Question 53.
Compounds obtained from petro-chemical coal are
A) Coke, Coaltar, Coal gas
B) Coaltar, Kerosene, Coke
C) Coke, Coal gas, Petrol
D) Diesel, Coke, Coal gas
Answer:
A) Coke, Coaltar, Coal gas

Question 54.
Generally petrochemicals are harmful to environment.
Name the petrochemical which is not harmful.
A) Petroleum
B) Natural gas
C) Wood
D) Coal
Answer:
B) Natural gas

Question 55.
Set – A — Set – B
a) Coal — i) Plankton
b) Petroleum — ii) Fractional distillation
c) Petrol — iii) Carbonisation
Establish a relation between the com-pounds in Set – A and the formation process in Set – B.
A) a – iii, b – i, c – ii
B) a – i, b – ii, c – iii
C) a – ii, b – iii, c – i
D) a – iii, b – ii, c – i
Answer:
C) a – ii, b – iii, c – i

Question 56.
Which among the following is not a petrochemical?
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 6
Answer:
C) Conical flask

Question 57.
In the given picture X – indicates
AP 8th Class Physical Science Bits Chapter 7 Coal and Petroleum with Answers 7
A) Coal powder
B) Wax
C) Petroleum
D) Water
Answer:
A) Coal powder

Question 58.
Petroleum is a fossil fuel and is a nonrenewable source. Which among the following indicates the proper utilisation of fuels?
a) Minimising the mis-use of fuels.
b) Stop using the utilisation of nonrenewable sources.
c) Developing alternate resources of fuels.
A) a and b
B) a and c
C) a, b and c
D) a only
Answer:
B) a and c

Question 59.
The incorrect statement from the following is
A) Coal is formed due to carbonization
B) LPG is better fuel than CNG
C) Petroleum formed by plankton
D) Petrochemicals have various uses
Answer:
B) LPG is better fuel than CNG

Question 60.
When coal burns in air ……….
A) Carbon monoxide is formed
B) Oxygen is formed
C) Sulphur dioxide is formed
D) Carbon dioxide is formed
Answer:
D) Carbon dioxide is formed

Question 61.
Purest form of carbon is
A) Coal
B) Charcoal
C) Coke
D) All the above
Answer:
C) Coke