Which of the solution will be acidic? (1) 0.1 M FeSO 4 (2) 0.1 M ( NH 4)2 SO 4 (3) 0.1 M CH 3 COONa (4) 0.1 M NH 4 OH

Question

Which of the solution will be acidic? (1) 0.1 M FeSO 4 (2) 0.1 M ( NH 4)2 SO 4 (3) 0.1 M CH 3 COONa (4) 0.1 M NH 4 OH (A) 1, 2 and 3 are correct (B) 1 and 2 are correct (C) 2 and 4 are correct (D) 1 and 3 are correct

Tardigrade Admin · Accepted Answer

FeSO 4 and ( NH 4)2 SO 4 the salts are of weak bases with strong acids and undergo hydrolysis to give acidic solution, while CH 3 COONa (salt of weak acid and strong base) gives basic solution. NH 4 OH is weak base.

Q. Which of the solution will be acidic?
(1) $0.1 M F e S O_{4}$
(2) $0.1 M (N H_{4})_{2} S O_{4}$
(3) $0.1 M C H_{3} COON a$
(4) $0.1 M N H_{4} O H$

1, 2 and 3 are correct

1 and 2 are correct

2 and 4 are correct

1 and 3 are correct

$F e S O_{4}$ and $(N H_{4})_{2} S O_{4}$ the salts are of weak bases with strong acids and undergo hydrolysis to give acidic solution, while $C H_{3} COON a$ (salt of weak acid and strong base) gives basic solution.
$N H_{4} O H$ is weak base.

Q. Which of the solution will be acidic? (1) 0.1MFeSO4​ (2) 0.1M(NH4​)2​SO4​ (3) 0.1MCH3​COONa (4) 0.1MNH4​OH