A double salt is that which gives

Options

A. two cations other than `H^+` ions
B. more than one anion
C. one cation other than `H^+`
D. None of the above

Explanation

### Step-by-Step Solution:

1. **Understanding Double Salts**:
- A double salt is a type of salt that consists of two different cations and/or anions. It is formed by the combination of two different salts that crystallize together.

2. **Identifying Components**:
- Double salts contain more than one type of cation or anion. For example, in the case of Mohr's salt, it contains ammonium ions (NH₄⁺) and ferrous ions (Fe²⁺), along with sulfate ions (SO₄²⁻).

3. **Analyzing Options**:
- The options provided in the question are:
- 2 cations other than H⁺ ions
- More than 1 anion
- 1 cation other than H⁺
- None of these
- Since a double salt must contain more than one cation or anion, the first option is the most appropriate.

4. **Conclusion**:
- Therefore, the correct definition of a double salt is that it contains **2 cations other than H⁺ ions**.

### Final Answer:
A double salt is that which gives **2 cations other than H⁺ ions**.

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