Which of the following compound(s) will give $C O_{2}$ on reaction with $N a H C O_{3}$ ?

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
Strong acid displace weak acid from the salt of weak acid. Thus, acid which are stronger than the conjugate acid of $N a H C O_{3}$ will react with $N a H C O_{3}$ to give $C O_{2}$ .
Phenol is a weak acid than carbonic acid so it cannot decompose $N a H C O_{3}$ .
Generally, all those acids which are more acidic than phenol will release $C O_{2}$ on reaction with $N a H C O_{3}$ .

In compound (a) and (b) $N H_{2} and O H$ group present at the para position and shows the resonance effect. This increase the electron density on oxygen and reduce the stability of conjugate base formed. Hence, it is less acidic than phenol.

In compound (c), $C O O H$ group is present which more acidic than $O H$ group due resonating structures. Hence, it is more acidic than phenol

In compound (d), $N O_{2}$ will reduce the electron density and stabilise the conjugate base by resonance effect. Hence, it is more acidic than phenol.

Thus, compound (c) and (d) are more acidic than phenol. Hence, it will react with $N a H C O_{3}$ to produce $C O_{2}$ .

Suggest Corrections

Similar questions

C O_{2}

N a H C O_{3}

C O_{2}

N a H C O_{3}

(C O_{2})

N a H C O_{3}

(C O_{2})

N a H C O_{3}

C O_{2}

N a H C O_{3}

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program