CBSE Class 12 Chemistry Chapter 11 Important Questions – Free PDF Download
Free PDF download of Important Questions for CBSE Class 12 Chemistry Chapter 11 – Alcohols, Phenols and Ethers 1 Marks Questions prepared by expert Chemistry teachers from latest edition of CBSE(NCERT) books, On CoolGyan.Org to score more marks in CBSE board examination.
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Important Questions Class 12 Chemistry Chapter 11 – Alcohols, Phenols and Ethers
CBSE Class 12 Chemistry Important Questions Chapter 11 – Alcohols, Phenols and Ethers
1 Mark Questions
1. Write IUPAC names of :-
i. 
Ans. 5 – Methyloctan-3-ol
ii. 
Ans. 1-Chloro propan-2-ol
iii. 
Ans. Pentan – 1,3,4 – triol
iv. 
Ans. 2 – Methylpropan -2-ol
v. 
Ans. 1,3 – Dibromo – 4- chloro – 2- butanol
vi. 
Ans. 5 – Chloro – 4 – ethyl – 5- methyl hexanol.
vii. 
Ans. 2 – Phenyl ethanol
viii. 
Ans. 2- Methyl phenol.
ix. 
Ans. 4- Bromo -3, 3,5 – trimethyl – hex -1-ene- 2,5- diol
x. 
Ans. 2,3 – Dimethylbutan – 2,3 –diol
2. Write structural formula and give IUPAC names :-
i. Benzyl Alcohol
Ans. 
ii. Ethylene Glycol
Ans. 
iii. Glycerol
Ans. 
iv. m- cresol
Ans. 
v. 
Ans. 
vi. Ethylphenylether
Ans. 
vii. Methylpropylether
Ans. 
viii. Anisole
Ans. 
ix. Isopropyl methylether
Ans. 
x. Phenetole
Ans. 
3. What is denatured alcohol?
Ans. Industrial alcohol (ethyl alcohol) is made unfit for drinking purpose by addition of a small quantity of poisonous substance, methanol. This is called denatured alcohol. For denaturation, copper sulphate or pyridine can also be added.
4. Mention two important uses of methanol.
Ans. Uses of methanol:-
(i) It is used for denaturing alcohol.
(ii) It is used as a solvent for paints & varnishes.
5. Arrange 
in the increasing order of acid strength.
Ans. The order is
.
6. Give the structure of main product of action of excess of 
on phenol.
Ans. The main product will be 2,4,6-tribromophenol.
7. What is wood sprit? Why is it so called?
Ans. Wood spirit is methanol. It is so called because earlier it was obtained from destructive distillation of wood only.
8. Identify allylic alcohols in the above examples.
Ans. The alcohols given in (ii) and (vi) are allylic alcohols.
