Correct Answer - A
Equivalent mass lof `Cl = 35.5` g
Equivalent mass of copper chloride ` = 99.0 ` g
Equivalent of copper combined `=99. 0 - 35. 5 = 63. 5`
Molar mass of copper `=63.5`
Since, equivalent mass = molar mass
Hence, the formula of compound `= CuCl`