Question

Mineral acids are stronger acids than carboxylic acids because :

(1) Mineral acids are partially ionised
(2) Mineral acids are completely ionised
(3) Carboxylic acids are partially ionised
(4) Carboxylic acids are completely ionised
Select the correct alternative.

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)

Answer 1

Mineral acids are stronger than carboxylic acids because they are completely ionized, while carboxylic acids are only partially ionized in solution. The correct answer is B. (ii) and (iii).

Step-by-step explanation:

Mineral acids are stronger acids than carboxylic acids because mineral acids are completely ionised while carboxylic acids are partially ionised. A strong acid, like a mineral acid, is 100% ionized in solution, which means that it dissociates completely, producing a high concentration of hydrogen ions (H+). In contrast, a weak acid like a carboxylic acid is not completely ionized in water; typically, only a small fraction of the acid molecules dissociate at any given time.

The correct alternative for the given question is B. (ii) and (iii), as mineral acids are completely ionised and carboxylic acids are partially ionised, which aligns with their definitions as strong and weak acids respectively.