Question

In the reaction
ROH+HX->RX + 20
1) 2°>1°<3°
2) 3°>2°>19
3) 2°<1°<3°
4) 1°>2°>3​

Answer 1

Explanation:

The reaction R−OH+HX→RX+H

2

O is a nucleophilic substitution reaction where the reactivity of R−OH will depend upon the stability of carbocation that is formed during the reaction via S

N

1 mechanism.

Tertiary carbocations are more stable due to + Inductive effect of alkyl groups then is secondary and least stable is primary carbocation.

The reactivity of alcohols will follow the order

Tertiary alcohol > secondary alcohol > primary alcohol