Explanation:

Introduction:
In this question, we are given that a metal, M, forms chlorides in its 2 and 4 oxidation states. We need to determine which of the given statements about these chlorides is correct.

Comparison of MCl2 and MCl4:

1. Ionic character: The ionic character of a compound is determined by the difference in electronegativity between the two elements. In general, greater the electronegativity difference, more ionic the compound is.
- For MCl2, the metal M is in the 2 oxidation state. Metals in lower oxidation states tend to have lower electronegativity. Therefore, the electronegativity difference between M and Cl is higher, resulting in a more ionic character.
- For MCl4, the metal M is in the 4 oxidation state. Metals in higher oxidation states tend to have higher electronegativity. Therefore, the electronegativity difference between M and Cl is lower, resulting in a less ionic character.
- Hence, the statement "MCl2 is more ionic than MCl4" is correct.

2. Hydrolysis: Hydrolysis is the reaction of a compound with water. It depends on the stability of the compound and the ease with which it can react with water.
- Generally, compounds with higher ionic character are more easily hydrolyzed. Since MCl2 has a higher ionic character than MCl4, it is more easily hydrolyzed.
- Hence, the statement "MCl2 is more easily hydrolyzed than MCl4" is incorrect.

3. Volatility: Volatility refers to the tendency of a compound to vaporize. It depends on the strength of intermolecular forces in the compound.
- Compounds with higher ionic character generally have stronger intermolecular forces, resulting in lower volatility. Since MCl2 has a higher ionic character than MCl4, it is less volatile.
- Hence, the statement "MCl2 is more volatile than MCl4" is incorrect.

4. Solubility in anhydrous ethanol: Solubility depends on the interaction between the compound and the solvent. It is influenced by factors such as polarity and the presence of suitable functional groups.
- Since both MCl2 and MCl4 are chlorides, they are expected to have similar solubility in anhydrous ethanol.
- Hence, the statement "MCl2 is more soluble in anhydrous ethanol than MCl4" is incorrect.

Conclusion:
Based on the comparison, we can conclude that the correct statement is "MCl2 is more ionic than MCl4" (Option A).

A