Question

Mineral acids are stronger acids than carboxylic acids because

(i) mineral acids are completely ionized

(ii) carboxylic acids are completely ionized

(iii) mineral acids are partially ionized

(iv) carboxylic acids are partially ionized

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

Answer 1

The correct option is A

(i) and (iv)

Explanation for Correct Answer:

Option A (i) and (iv)

• A mineral acid is an inorganic compound that dissociates to produce hydrogen ions (${\mathrm{H}}^{+}$) in water.
• Mineral acids are highly soluble in water but tend to be insoluble in organic solvents.
• A Carboxylic Acid is an organic compound containing a carboxyl functional group.
• They occur widely in nature and also can be synthetically manufactured by humans.
• Carboxylic acids dissociate in water to form carboxylate ions and hydronium ions.
• The carboxylate ion formed is stabilized through resonance by effective delocalization of the negative charge.
• Mineral acids are completely ionized whereas carboxylic acids are partially ionized and mineral acids are stronger than carboxylic acids.
• Mineral acids are stronger acids than carboxylic acids because mineral acids are completely ionized and carboxylic acids are partially ionized.
• Hence, Option A (i) and (iv) is correct.

Explanation for incorrect Answer:

Option B (ii) and (iii)

• Mineral acids are completely ionized and Carboxylic acids are partially ionized.
• Hence, Option B (ii) and (iii) is incorrect.

Option C (i) and (ii)

• Mineral acids are completely ionized and Carboxylic acids are partially ionized.
• Hence, Option C (i) and (ii) is incorrect.

Option D (iii) and (iv)

• Mineral acids are completely ionized and Carboxylic acids are partially ionized.
• Hence, Option D (iii) and (iv) is incorrect.