Question

Which one of the following does not form a sodium bisulfite addition product with sodium bisulfite solution?
(A) $C{H_3}COC{H_3}$
(B) ${C_6}{H_5}COC{H_3}$
(C) ${C_6}{H_5}CHO$
(D) $C{H_3}CHO$

Answer 1

Here, in this questions, the Sodium bisulphite is $NaHS{O_3}$, which is breakdown into $N{a^ + } + {H^ - }S{O_3}$ in which ${H^ - }S{O_3}$ act as Nucleophile, whereas nucleophilic addition reaction involving the initial attack of a Nucleophile on the slightly positive Carbon Centre of the Carbonyl group but it must have conditions for Carbonyl group reactivity that it is react with all aldehydes & react only with methyl substitutes or cyclic ketone.

Complete step by step answer: So, in the option (A) $C{H_3}COC{H_3}$ which is called a dimethyl ketone, it reacts with sodium bisulphite because the condition is applied. Sodium bisulphite because the condition is applied. Sodium Bisulfite reacts only with methyl or cyclic ketone.

Then, the option (B) ${C_6}{H_5}COC{H_3}$ which is Acetophenone does not give addition product with sodium bisulphite ($NaHS{O_3}$) solution because, in Acetophenone, two bulkier groups are attached with the Carbonyl Carbon. These Groups decrease the Carbonyl Carbon reactivity due to its Steric Hindrance. Acetophenone has bulky substituents nucleophilic addition which is not favorable.

In the option (C) ${C_6}{H_5}CHO$ is an aldehyde. So, in which sodium bisulfite reacts with stearic unhindered aldehyde. So, these form sodium bisulfite addition products with sodium bisulfite solution.
Then, the last option (D) $C{H_3}CHO$ is also an Aldehyde which reacts with sodium bisulphite. These aldehydes follow the condition so it is forming a sodium bisulphite solution.

Hence, that the ${C_6}{H_5}COC{H_3}$ does not form sodium bisulfite addition product with sodium bisulphite solution because these are not followed by the condition & does not react with sodium bisulphite.
Option (B) which is ${C_6}{H_5}COC{H_3}$is a correct option where it does not form an additional product with sodium bisulphite solution.

Note: Further, the nucleophile is a chemical species that helps in donating the electron pair to formed a chemical bond in relation to a reaction the aldehydes and ketones which are involved in the Nucleophilic addition reactions, the nucleophilic addition, reaction is defined as the addition reaction in which nucleophilic reacts with an electrophilic bond.