Write the balanced chemical equations for the following reactions:
(i). A mixture of potassium dichromate and sodium chloride is heated with concentrated `H_2SO_4`.
(ii). Potassium peramanganate is added to a hot solution of manganous sulphate.

Explanation

To write the balanced chemical equations for the given reactions, we will follow these steps:

### (i) Reaction of Potassium Dichromate and Sodium Chloride with Concentrated H₂SO₄

1. **Identify the Reactants**: The reactants are potassium dichromate (K₂Cr₂O₇), sodium chloride (NaCl), and concentrated sulfuric acid (H₂SO₄).

2. **Write the Unbalanced Equation**:
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