Question

Assertion: 2-Butanol on heating with H₂SO₄ gives 1-butene and 2-butene.

Reason: Dehydration of 2-butanol follows Saytzeff's rule.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

The correct option is: (a)

Explanation:

Saytzeff's rule: The alkene formed in greatest amount is the one that corresponds to removal of the hydrogen from the β-carbon having the fewest hydrogen substituent. 

In case of 2° and 3° alcohol Saytzeff's rule is followed.