Alcohols, Phenols, and Ethers Class 12 MCQs Questions with Answers

1. Dehydration of alcohol is an example of:

2. HBr reacts fastest with:

3. Which of the following reagents cannot be used to distinguish between phenol and benzyl alcohol?

4. Acid-cataylysed hydration of alkenes except ethene leads to the formation of:

5. Which of the Following is True?

6. Among the following sets of reactants which one produces anisole?

7. Benzenediazonium chloride on reaction with phenol in weakly basic medium gives:

8. During dehydration of alcohols to alkenes by heating with cone. H2SO4 the initial step is:

9. Dehydration of alcohol is an example of:

10. Which of the Following is Formed when Glycerol is heated with Oxalic Acid at 503K?

11. 1-propanol and 2-propanol can be best dis¬tinguished by:

12. Phenol reacts with Br2 in CS2 at low temperature to give:

13. In the reduction
R — CHO + H2 → RCH2OH
the catalyst used is :

14. Which compound is predominantly formed when phenol is allowed to react with bromine in aqueous medium?

15. Catalytic Dehydrogenation of Primary Alcohol gives a___

16. Phenols are more acidic than alcohols because:

17. Which of the following reacts with NaOH to give an alcohol?

18. Ethylene reacts with Baeyer’s reagent to give:

19. Wood spirit is known as acetone:

20. When Phenol is treated with Excess Bromine Water it gives___