Assertion : Order of reactivity of alcohols involving cleavage of `O-H` bond is, primary `gt` secondary `gt` tertiary.
Reason : This is due to `+ I` effect of the alkyl group (R).

The order of reactivity of alcohols in the esterification reaction is : Primary gt secondary gt tertiary. Justify.

Assertion : Ease of dehydraction of alcohols follows the order : Tertiary gt Secondary gt Primary. Reason : Dehydration proceeds through the formation of oxonium ion.

Assertion : Order of basicity of amines in gaseous phase of NH_(3) gt primary gt secondary gt tertiary. Reason : In gaseous phase basic nature of aliphatic amines increases with increase in no. of alkly groups.

What is the reactivity order of primary secondary and tertiary alcohols involving the cleavage of O-H bond?

(A ) Acidic character of alcohols follows the order : Primary gt Secondary gt Tertiary (R ) Acidic character of alcohols is due to the presence of polar O-H group.

Assertion: The relative ease of dehydration of alcohols following order: Tretiary gt secondary gt Primary Reason : Formation of carbocation is the slowest step of reaction.

Assertion: The relative ease of dehydration of alcohols following order: Tretiary gt secondary gt Primary Reason : Formation of carbocation is the slowest step of reaction.

Greater is the stability of the substituted ammonium cation, stronger should be the corresponding amine as a base. Thus, the order of basicity of aliphatic amines should be: primary > secondary > tertiary, which is opposite to the inductive effect based order. Secondly, when the alkyl group is small, like- CH_3 group, there is no steric hindrance to H-bonding. In case the alkyl group is bigger than CH_3 group, there will be steric hinderance to H-bonding. Therefore, the change of nature of the alkyl group, e.g.,from- CH_3 to- C_2 H_5 results in change of the order of basic strength. In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion (A): Greater is the stability of the substituted ammonium cation, stronger is the corresponding amine as a base. Reason (R): The order of basicity of aliphatic amines is: primary > secondary > tertiary.