{"id":35371,"date":"2022-09-09T10:16:01","date_gmt":"2022-09-09T04:46:01","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=35371"},"modified":"2022-09-09T10:16:01","modified_gmt":"2022-09-09T04:46:01","slug":"ap-inter-2nd-year-chemistry-important-questions-chapter-12a","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-inter-2nd-year-chemistry-important-questions-chapter-12a\/","title":{"rendered":"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers"},"content":{"rendered":"<p>Students get through <a href=\"https:\/\/apboardsolutions.guru\/ap-inter-2nd-year-chemistry-important-questions\/\">AP Inter 2nd Year Chemistry Important Questions<\/a> Lesson 12(a) Alcohols, Phenols, and Ethers which are most likely to be asked in the exam.<\/p>\n<h2>AP Inter 2nd Year Chemistry Important Questions Lesson 12(a) Alcohols, Phenols, and Ethers<\/h2>\n<p><span style=\"color: #0000ff;\">Very Short Answer Questions<\/span><\/p>\n<p>Question 1.<br \/>\nExplain why propanol has a higher boiling point than that hydrocarbon-butane.<br \/>\nAnswer:<br \/>\nPropanol has a higher boiling point (391K) than that hydrocarbon butane (309K).<br \/>\nReason : In propanol strong intermolecular hydrogen bonding is present between the molecules. But in case of butane weak vander waal&#8217;s force of attractions are present.<\/p>\n<p>Question 2.<br \/>\nAlcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses. Explain this fact.<br \/>\nAnswer:<br \/>\nAlcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses.<br \/>\nExplanation:<\/p>\n<ul>\n<li>Alcohols and water are both polar solvents. Alcohol is dissolves in water, due to formation of hydrogen bonding with water molecules.<\/li>\n<li>Hydro carbons are non polar and these donot form hydrogen bonds with water molecules. So alcohols are soluble in water where as hydrocarbons are not soluble in water.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/07\/AP-Board-Solutions.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers\" width=\"196\" height=\"17\" \/><\/p>\n<p>Question 3.<br \/>\nName the reagents used in the following reactions.<\/p>\n<ol>\n<li>Oxidation of primary alcohol to carboxylic acid<\/li>\n<li>Oxidation of primary alcohol to aldehyde.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>The reagents used for the oxidation of 1\u00b0 &#8211; alcohols to carboxylic acid are acidified K<sub>2<\/sub>Cr<sub>2<\/sub>O<sub>7<\/sub> (or) Acidic\/alkaline KMnO<sub>4<\/sub> (or) Neutral KMnO<sub>4<\/sub>.<\/li>\n<li>The reagents used for the oxidation of 1\u00b0- alcohols to aldehyde are pyridine chloro chromate (PCC) in CH<sub>2<\/sub>Cl<sub>2<\/sub>.<\/li>\n<\/ol>\n<p>Question 4.<br \/>\nWrite any one method for the preparation of ethyl alcohol.<br \/>\nAnswer:<br \/>\nFrom Alkenes : Alcohols can be prepared from alkenes by hydration or hydroboration oxidation.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24323\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-1.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 1\" width=\"338\" height=\"76\" \/><\/p>\n<p>Question 5.<br \/>\nWhat is Williamsons synthesis ? Give example. (IPE &#8211; 2016 (AP) (TS), 2015 (AP))<br \/>\nAnswer:<br \/>\nWilliamsons synthesis : Reaction of alkyl halide with sodium alkoxide to give ether is called Williamson&#8217;s synthesis.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24324\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-2.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 2\" width=\"421\" height=\"106\" \/><\/p>\n<p>Question 6.<br \/>\nWrite the equations for the following reactions.<\/p>\n<ol>\n<li>Bromination of phenol to 2, 4, 6-tribromophenol<\/li>\n<li>Benzyl alcohol to benzoic acid.<\/li>\n<\/ol>\n<p>Answer:<\/p>\n<ol>\n<li>Bromination of phenol to 2, 4, 6 tribromophenol.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24325\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-3.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 3\" width=\"399\" height=\"176\" \/><\/li>\n<li>Benzyl alcohol to benzoic acid converted as follows.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24326\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-4.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 4\" width=\"367\" height=\"118\" \/><\/li>\n<\/ol>\n<p><img loading=\"lazy\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/07\/AP-Board-Solutions.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers\" width=\"196\" height=\"17\" \/><\/p>\n<p>Question 7.<br \/>\nGive the reagents used for the preparation of phenol from chlorobenzene.<br \/>\nAnswer:<br \/>\nPhenol is prepared from chlorobenzene as follows. Reagents required are<\/p>\n<ol>\n<li>NaOH, 623K, 300 atm,<\/li>\n<li>HCl.<\/li>\n<\/ol>\n<p>Chemical reaction:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24327\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-5.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 5\" width=\"608\" height=\"144\" \/><\/p>\n<p>Question 8.<br \/>\nwhat is Esterification ? Give equation.<br \/>\nAnswer:<br \/>\nEsterification : Alcohols react with carboxylic acids or acid halides or acid anhydrides to form esters.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24328\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-6.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 6\" width=\"400\" height=\"263\" \/><\/p>\n<p>Question 9.<br \/>\nWhat is Dehydration ? Give equation.<br \/>\nAnswer:<br \/>\nDehydration : Alcohols undergo dehydration in the presence of dehydrating agents like cone H<sub>2<\/sub>SO<sub>4<\/sub>, (or) H<sub>3<\/sub>PO<sub>4<\/sub> etc and form alkenes. The relative ease of dehydration of alcohols follows the following order. Tertiary alcohol &gt; Secondary alcohol &gt; primary alcohol.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24329\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-7.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 7\" width=\"443\" height=\"161\" \/><\/p>\n<p>Question 10.<br \/>\nWhat is Reimer Tiemann reaction ? Give equation.<br \/>\nAnswer:<br \/>\nReimer-Tiemann reaction : Phenol reacts with chloroform in presence of NaOH to form salicylaldehyde (O-Hydroxy benzaldehyde). This reaction is known as Reimer-Tiemann reaction.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24330\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-8.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 8\" width=\"560\" height=\"307\" \/><\/p>\n<p>Question 11.<br \/>\nWhat is Kolbe&#8217;s reaction ? Give equation.<br \/>\nAnswer:<br \/>\nKolbe&#8217;s reaction : Phenol reacts with sodium hydroxide to form sodium phenoxide. This undergoes electrophillic substitution with CO<sub>2<\/sub> to form salicylic acid.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24331\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-9.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 9\" width=\"470\" height=\"171\" \/><\/p>\n<p>Question 12.<br \/>\nWrite the mechanism of the reaction of HI with methoxymethane.<br \/>\nAnswer:<br \/>\nCase &#8211; I : When methoxy methane reacts with cold.dil. HI then methyl alcohol and methyl iodide are formed.<br \/>\nMechanisms:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24332\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-10.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 10\" width=\"596\" height=\"182\" \/><br \/>\nCase-II: When methoxy methane reacts with hot.conc.HI then only methyl iodide is formed.<br \/>\nMechanisms:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24333\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-11.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 11\" width=\"489\" height=\"158\" \/><\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/07\/AP-Board-Solutions.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers\" width=\"196\" height=\"17\" \/><\/p>\n<p>Question 13.<br \/>\nIdentify the reactant needed to form t-butylalcohol from acetone.<br \/>\nAnswer:<br \/>\nWhen acetone reacts with methyl magnesium bromide followed by the hydrolysis forms t-butylalcohol.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24335\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-13.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 13\" width=\"619\" height=\"147\" \/><\/p>\n<p>Question 14.<br \/>\nWrite the Oxidation reaction of phenol.<br \/>\nAnswer:<br \/>\nPhenol undergo oxidation with chromicacid and forms a conjugated diketone known as benzoquinone.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24336\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-14.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 14\" width=\"306\" height=\"227\" \/><\/p>\n<p><span style=\"color: #0000ff;\">Short Answer Questions<\/span><\/p>\n<p>Question 1.<br \/>\nGive the equations for the preparation of phenol from Cumene. (TS Mar. &#8217;17) (Mar. &#8217;14)<br \/>\nAnswer:<br \/>\nPhenol is prepared from Cumene as follows.<\/p>\n<ol>\n<li>Oxidation of Cumene to Cumene hydroperoxide.<\/li>\n<li>Cumene hydroperoxide on acidic hydrolysis to form phenol.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24337\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-15.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 15\" width=\"473\" height=\"215\" \/><\/li>\n<\/ol>\n<p>Question 2.<br \/>\nExplain the acidic nature of phenols and compare with that of alcohols. (AP Mar. &#8217;17)Board Model Paper<br \/>\nAnswer:<br \/>\nThe reaction of phenol with sodium metal and with aq.NaOH indicates the acidic nature of phenol.<br \/>\ni) Phenol reacts with sodium metal to form sodium phenoxide.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24338\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-16.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 16\" width=\"387\" height=\"142\" \/><\/p>\n<p>ii) Phenol reacts with aq.NaOH and forms sodium phenoxide<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24339\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-17.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 17\" width=\"307\" height=\"131\" \/><\/p>\n<ul>\n<li>In phenol hydroxyl group is attached to the Sp<sup>2<\/sup> hydridised carbon of benzene ring which acts as electron with drawing group. The formed phenoxide ion from phenol is more stabilised due to delocalisation of negative charge.<\/li>\n<\/ul>\n<p>Comparison of acidic character of Phenol and Ethanol:<\/p>\n<ul>\n<li>The reaction of phenol with aq. NaOH indicates that phenols are stronger acids than alcohols.<\/li>\n<li>The hydroxyl group attached to an aromatic ring is more acidic than in hydroxyl group is attached to an alkyl group.<\/li>\n<li>Phenol forms stable phenoxide ion stabilised by resonance but ethoxide ion is not.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24340\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-18.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 18\" width=\"368\" height=\"151\" \/><\/li>\n<\/ul>\n<p>Question 3.<br \/>\nWrite the products formed by the reduction and oxidation of phenol.<br \/>\nAnswer:<br \/>\na) Reduction of phenol: Phenol undergo reduction in presence of zinc dust to form benzene.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24341\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-19.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 19\" width=\"229\" height=\"103\" \/><br \/>\nb) Oxidation of phenol : Phenol undergo oxidation with chromic acid and forms a conjugated diketone known as benzoquinone.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24342\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-20.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 20\" width=\"349\" height=\"169\" \/><\/p>\n<p>Question 4.<br \/>\nExplain why in anisole electrophilic substitution takes place at ortho and para positions and not at meta position.<br \/>\nAnswer:<br \/>\nAnisole is an aryl alkyl ether. In anisole the group -OCH<sub>3<\/sub> influences +R effect. This increases the electron density in the benzene ring and it leads to the activation of benzene ring towards electrophilic substitution reactions.<\/p>\n<p>In Anisole eletron density is more at O\u2014and P\u2014positions but not at M\u2014position. So O\u2014and P-products are mainly formed during electrophillic substitution reactions.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24343\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-21.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 21\" width=\"544\" height=\"211\" \/><\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/07\/AP-Board-Solutions.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers\" width=\"196\" height=\"17\" \/><\/p>\n<p>Question 5.<br \/>\nExplain wh\u00fd phenol with bromine water forms 2,4, 6-tribromophenol while on reaction with bromine in CS<sub>2<\/sub> at low temperatures forms para\u2014bromophenol as the major product.<br \/>\nAnswer:<br \/>\na) Phenol undergoes Bromination in presence of CS<sub>2<\/sub> to form p\u2014bromophenol as major product.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24344\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-22.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 22\" width=\"430\" height=\"200\" \/><br \/>\nb) Phenol undergoes bromination in aqueous medium form 2,4,6 -tribromo phenol (white ppt).<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24345\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-23.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 23\" width=\"362\" height=\"175\" \/><\/p>\n<p>Explanation : In bromination of phenol, the polarisation of Br<sub>2<\/sub> molecule takes place even in the absence of Lewis acid. This is due to the highly activating effect of -OH group attached to the benzene ring.<\/p>\n<p>Question 6.<br \/>\nExplain the acidic nature of phenol.<br \/>\nAnswer:<br \/>\nThe reaction of phenol with sodium metal and with aq.NaOH indicates the acidic nature of phenol.<br \/>\ni) Phenol reacts with sodium metal to form sodium phenoxide.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24346\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-24.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 24\" width=\"298\" height=\"131\" \/><\/p>\n<p>ii) Phenol reacts with aq.NaOH and forms sodium phenoxide.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24347\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-25.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 25\" width=\"387\" height=\"143\" \/><\/p>\n<ul>\n<li>In phenol hydroxyl group is attached to the Sp<sup>2<\/sup> hydridised carbon of benzene ring which acts as electron with drawing group. The f\u00f5rmed phenoxide ion from phenol is more stabilised due to delocalisation of negative charge.<\/li>\n<\/ul>\n<p>Question 7.<br \/>\nExplain the electrophilic substitution reaction of Anisole.<br \/>\nAnswer:<br \/>\nElectrophilic substitution in Anisole:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24348\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-26.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 26\" width=\"531\" height=\"631\" \/><br \/>\nIn all the above reactions p &#8211; isomer is the major product.<\/p>\n<p>Question 8.<br \/>\nWrite equations of the below given reactions:<br \/>\ni) Alkylatlon of anisole<br \/>\nii) Nitration of anisole<br \/>\niii) Friedel\u2014Crafts acetylation of anisole<br \/>\nAnswer:<br \/>\ni) Friedel crafts alkylation of anisole:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24349\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-27.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 27\" width=\"553\" height=\"181\" \/><\/p>\n<p>ii) Nitration of anisole:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24350\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-28.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 28\" width=\"562\" height=\"152\" \/><\/p>\n<p>iii) Friedel &#8211; Crafts acetylation of anisole<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24351\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-29.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 29\" width=\"538\" height=\"195\" \/><\/p>\n<p>Question 9.<br \/>\nIllustrate hydroboration-oxidation reaction with a suitable example.<br \/>\nAnswer:<br \/>\nWhen alkenes undergo addition reaction with diborane to form tri alkyl boranes. These followed by the oxidation by alkaline H<sub>2<\/sub>O<sub>2<\/sub> to form alcohols. This reaction is called as hydroboration-oxidation reaction.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24352\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-30.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 30\" width=\"602\" height=\"186\" \/><\/p>\n<p>Question 10.<br \/>\nWrite any two methods for the preparation of phenol. (IPE 2014)<br \/>\nAnswer:<br \/>\nPreparation of Phenol : Phenol can be prepared from halobenzene, benzene diazonium chloride and cumene etc.<br \/>\ni) From halobenzene<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24353\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-31.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 31\" width=\"467\" height=\"132\" \/><\/p>\n<p>ii) from Benzene diazonium chloride<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24354\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-32.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 32\" width=\"318\" height=\"112\" \/><\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/07\/AP-Board-Solutions.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers\" width=\"196\" height=\"17\" \/><\/p>\n<p>Question 11.<br \/>\nWrite the structures of the following compounds.<br \/>\ni) 2 Methyl butan -1 &#8211; o1<br \/>\nii) 2, 3 &#8211; diethyl phenol<br \/>\niii) 1 &#8211; ethoxy propane<br \/>\niv) Cyclohexyl methanol<br \/>\nAnswer:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-24355\" src=\"https:\/\/apboardsolutions.com\/wp-content\/uploads\/2022\/09\/AP-Inter-2nd-Year-Chemistry-Important-Questions-Chapter-12a-Alcohols-Phenols-and-Ethers-33.png\" alt=\"AP Inter 2nd Year Chemistry Important Questions Chapter 12(a) Alcohols, Phenols, and Ethers 33\" width=\"453\" height=\"316\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Students get through AP Inter 2nd Year Chemistry Important Questions Lesson 12(a) Alcohols, Phenols, and Ethers which are most likely to be asked in the exam. AP Inter 2nd Year Chemistry Important Questions Lesson 12(a) Alcohols, Phenols, and Ethers Very Short Answer Questions Question 1. Explain why propanol has a higher boiling point than that &hellip;<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[14],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/35371"}],"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=35371"}],"version-history":[{"count":1,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/35371\/revisions"}],"predecessor-version":[{"id":35372,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/35371\/revisions\/35372"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=35371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=35371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=35371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}