Arrange the following radicals in the increasing order of total number of constituent atoms present in the respective radicals.
(a) hydroxide (b) nitride (c) chromate (d) sulphite (e ) dihydrogen phosphate

Explanation

To solve the problem of arranging the radicals in increasing order of the total number of constituent atoms, we will first identify the chemical formulas of each radical and then count the number of atoms in each.

1. **Identify the radicals and their formulas:**
- (a) Hydroxide: \( \text{OH}^- \)
- (b) Nitride: \( \text{N}^{3-} \)
- (c) Chromate: \( \text{CrO}_4^{2-} \)
- (d) Sulphite: \( \text{SO}_3^{2-} \)
- (e) Dihydrogen phosphate: \( \text{H}_2\text{PO}_4^- \)
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