During the preparation of Mohr's salt solution (Ferrous ammonium sulphate), which of the following acid is…

During the preparation of Mohr's salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of $\mathrm{Fe}^{2+}$ ion?
  1. concentrated sulphuric acid
  2. dilute nitric acid
  3. dilute sulphuric acid
  4. dilute hydrochloric acid

Solution

During the preparation of Mohr's salt, dilute sulphuric acid is added to prevent the hydrolysis of $\mathrm{Fe}^{2+}$ ion.

Asked in: NEET 2024

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