SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC chapter 11 - Alcohols, Phenols and Ethers [Latest edition]

In a carbinol system of nomenclature tert.butyl alcohol is named as _______________

Which of the following pair of reagent is used for conversion of carboxylic acid to alcohol?

Reaction between Grignard reagent and aldehyde other than formaldehyde leads to formation of _______________

Oxidation of ethyl alcohol using K₂Cr₂O₇/dil H₂SO₄ leads to formation of _______________

When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________

Reaction between hot conc. HI and anisole gives ______________

The reagents used to convert phenol to 2,4,6-tribromophenol is _____________

Why do phenols give deep coloration with neutral ferric chloride?

Arrange the following in decreasing order of acid strength.

CH₃OH, CH₃–CH₂–OH, CH₃–CH(OH)–CH₃, (CH₃)₃–C–OH

Write IUPAC name of crotonyl alcohol.

Draw the structure of the major product of hydroboration-oxidation of propene.

Write the reaction to get aspirin from salicylic acid.

Write the name of major product when anisole reacts HI at 398 K

What is the action of atmospheric oxygen on ethers?

With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.

Draw intramolecular hydrogen bonding structure in o-nitrophenol.

What is the action of following reagents on pent-3-enal?

1. H₂/Ni
2. LiAlH₄/H₃O⁺

Write the reactions involved in the preparation of phenol from benzene sulfonic acid.

Write Kolbe’s reaction.

Name the reagents used to convert phenol into

1. picric acid
2. p-benzoquinone

Identify ‘A’ and ‘B’ in the following reaction sequence.

\[\ce{CH3COOH + C2H5OH ->[H+][-H2O] A ->[H2/Ni][\Delta] B}\]

Write chemical equation of acetyl chloride with ethanol

Write chemical equation of acetyl chloride with phenol

What is the action of following on phenol at low temperature?

1. dil. HNO₃
2. conc. H₂SO₄
3. Br₂/CS₂

An unknown alcohol is treated with Lucas reagent. Explain how you will determine whether the alcohol is primary, secondary or tertiary. Indicate by chemical equation the reaction between isopropyl alcohol and Lucas reagent.

How will you bring about the following conversions?

isopropyl alcohol to acetone

How will you bring about the following conversions?

2-methyl propan-2-ol to 2-methylpropene

How will you bring about the following conversions?

acetone to 2-methylpropan-2-ol

Compound ‘A’ with molecular formula C₆H₅Cl is fused with NaOH at high temperature under pressure to give compound ‘B’. Compound ‘B’ on treatment with dil.HCl gives compound C having characteristic carbolic odour. Write the chemical equations in support of this. Name the process and give uses of compound C.

Write the preparation of ethanol from methyl magnesium iodide.

Write the reaction between ethanol and acetic anhydride.

Write the reactions for the preparation of carbolic acid from aniline.

What is the action of conc. H₂SO₄ on carbolic acid at 373 K.

Write chemical reactions to convert phenol into salicyaldehyde. Write the name of the reaction. What happens when if CCl₄ is used instead of CHCl₃ in the above reaction.

An organic compound gives hydrogen on reaction with sodium metal. It forms an aldehyde with molecular formula C₂H₄O on oxidation with pyridinium chlorochromate. Give the chemical equations in support of these observations.

Explain the fact that in alkyl aryl ethers, the alkoxy group is ring activating and ortho/para directing towards electrophilic aromatic substitution.

How will you prepare diethyl ether by dehydration of alcohol?

What are the limitations to prepare ether by this method?

What is the action of following on diethyl ether?

dil. H₂SO₄

What is the action of following on diethyl ether?

PCl₅