Metal Sulphate (MSO4)
- A metal sulphate has the chemical formula MSO4, where M represents the metal.
- In this formula, the metal is combined with the sulphate ion (SO4) to form a compound.
- The sulphate ion has a charge of -2, so the metal in the compound must have a charge of +2 to balance the charges.

Chloride of the Same Metal
- The chloride of the same metal will have the formula MClx, where M represents the metal and x represents the number of chloride ions.
- To determine the value of x, we need to consider the charges of the metal and the chloride ion.

Charge of the Metal
- Since the metal is the same as in the metal sulphate, it has a charge of +2.

Charge of the Chloride Ion
- The chloride ion has a charge of -1.

Balancing the Charges
- To balance the charges, the number of chloride ions must equal the charge of the metal.
- In this case, since the metal has a charge of +2, we need two chloride ions to balance the charges.

Formula of the Chloride
- Therefore, the formula of the chloride of the same metal is MCl2, where M represents the metal and the 2 indicates the number of chloride ions.

Explanation of the Correct Answer (Option C)
- The correct answer is option C, MCl2, which matches the formula derived from balancing the charges of the metal and the chloride ion.
- Option A, M2Cl3, would imply that the metal has a charge of +3, which contradicts the information given in the question.
- Option B, M2Cl, would imply that the metal has a charge of +1, which also contradicts the information given in the question.
- Option D, M3C3, is not a valid formula based on the information provided.

In summary, a metal sulphate with the formula MSO4 will have a chloride with the formula MCl2, as the charges of the metal and the chloride ion need to be balanced in the compound.