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Mohr's salt is dissolved in dil. H(2)SO(...

Mohr's salt is dissolved in dil. `H_(2)SO_(4)` instead of distilled water to

A

Enhance the rate of dissolution

B

Prevent cationic hydrolysis

C

Increase the rate of ionisation

D

Increase its reducing strength

Text Solution

Verified by Experts

The correct Answer is:
B
Mohr’s salt is a double salt of ferrous sulphate and ammonium sulphate `[FeSO_4(NH_4)_2 SO_4. 6H_2O]` both of which are salts of strong acid. In aqueous solution both will undergo hydrolysis. When the concentration of `H^(+)` ions is increased by adding a little acid. If will suppress the hydrolysis.
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