Question:
During the preparation of Mohr’s salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of Fe2+ ion?
During the preparation of Mohr’s salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of Fe2+ ion?
Updated On: Dec 4, 2024
- dilute hydrochloric acid
- concentrated sulphuric acid
- dilute nitric acid
- dilute sulphuric acid
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The Correct Option is D
Solution and Explanation
Step 1: Hydrolysis of $Fe^{2+}$:
Dilute $H_2SO_4$ is used as it prevents hydrolysis and oxidation.
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