Embibe Experts Solutions for Chapter: Organic Chemistry- Some Basic Principles and Techniques, Exercise 4: EXERCISE-4

Benzene sulphonic acid is a stronger acid than benzoic acid, explain.

Which is a stronger acid, $\mathrm{A}$ or $\mathrm{B}$ and why ?

Which is a stronger acid, $\mathrm{A}$ or $\mathrm{B}$ and why ?

Rank the following sets of intermediates in increasing order of their stability giving appropriate reasons for your choice.

(a) $:{\mathrm{CH}}_2, :\mathrm{C}{\left({\mathrm{C}}_6{\mathrm{H}}_5\right)}_2, {\mathrm{CH}}_3\mathrm{CH}:, {\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CH}:, {\mathrm{O}}_2{\mathrm{NCH}}_2\mathrm{CH}:$

(b)

(c)

${\mathrm{CH}}_3{\mathrm{COO}}^{-}$(acetate ion) is more stable than ${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}$(ethoxide ion). Explain.

The sodium salt of a carboxylic acid, $\mathrm{A},$ was produced by passing a gas, $\mathrm{B},$ into an aqueous solution of caustic alkali at an elevated temperature and pressure. A on heating in presence of sodium hydroxide followed by treatment with sulphuric acid gave a dibasic acid $\mathrm{C}.$ A sameple of $0.4 \mathrm{g}$ of $\mathrm{C}$ on combustion gave $0.08 \mathrm{g}$ of water and $0.39 \mathrm{g}$ of carbondioxide. The silver salt of acid weighin $1 \mathrm{g}$ on ignition yielded $0.71 \mathrm{g}$ of silver as residue. Identify $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}.$

Discuss the following observations :
(c) ${\mathrm{CH}}_3\mathrm{SH}$ is stronger acid than ${\mathrm{CH}}_3\mathrm{OH}$.

Discuss the following observations :
(d) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2$ is stronger base than ${\mathrm{CH}}_2={\mathrm{CHNH}}_2$.