MCQ Preparation of Alcohols and Phenols, Class 12 Chemistry

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Oxymercuration-demercuration of 3, 3-dimethyl but-1-ene gives which alcohol?

3,3-dimethyl butan-1-ol

3,3-dimethyl butan-2-ol

2,3-dimethyl butan-2-ol

2,3-dimethyl butan-1-ol

Question 1 of 10

2. Aldehydes other than formaldehyde give:

Primary alcohols

Secondary alcohols

Tertiary alcohols

Both (B) and (C)

Question 2 of 10

3. Acid catalyzed hydration of alkenes except ethene leads to the formation of :

Secondary or tertiary alcohol

Mixture of secondary and tertiary alcohol

Mixture of primary and secondary alcohol

Primary alcohol

Question 3 of 10

4. Which among the following compounds on reaction with methyl magnesium bromide followed by hydrolysis with water will give 2-methyl-2-propanol?

CH₃CH₂CHO

CH₃COCH₃

HCOOC₂H₅

C₂H₅COOCH₃

Question 4 of 10

5. Compound A on sulphonation with oleum forms benzene sulphonic acid, which on heating with NaOH and acidification yields phenol. What is Compound A?

Aniline

Benzene

Chlorobenzene

Cumene

Question 5 of 10

6. Isopropyl alcohol is obtained by reacting which of the following alkenes with water in the presence of acid as catalyst?

Isoprene

2-methyl propene

Ethylene

Propylene

Question 6 of 10

7. Fermentation is a commercial method for the preparation of :

Aldehyde

Ethanol

Propanone

None of the above

Question 7 of 10

8. Hydration of the following alkene gives which of the following alcohols

 

A

B

C

D

Question 8 of 10

9. Formaldehyde on reaction with Grignard reagent gives :

Primary alcohol

Secondary alcohol

Tertiary alcohol

Both (A) and (B)

Question 9 of 10

10. Phenol is manufactured by heating Chlorobenzene with sodium hydroxide and then treating with dilute HCl . This process is known as:

Friedal craft process

Schotten - Bauman process

Dow's process

Rasching process

Question 10 of 10

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