Arrange the following in order of the increasing covalent character : MCl , MBr , MF , MI (where M = alkali metal ) .

Explanation

To arrange the compounds MCl, MBr, MF, and MI in order of increasing covalent character, we need to consider the factors that influence covalent character in ionic compounds. The key factors include the size of the cation and the anion, as well as the charge of the ions involved.

### Step-by-Step Solution:

1. **Understanding Covalent Character**:
- Covalent character in ionic compounds arises due to polarization. A smaller cation can polarize the electron cloud of a larger anion more effectively, leading to a greater covalent character.

2. **Identify the Cations and Anions**:
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