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Question

The equivalent weight of divalent metal is W. The molecular weight of its chloride is:

A
W+35.5
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B
W+71
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C
2W+71
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D
2W+35.5
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Solution

The correct option is C 2W+71
Equivalent weight = MolecularweightValency
The equivalent weight of divalent metal is W
The molecular weight of the metal will be twice its equivalent weight as the metal is divalent.
Thus, the molecular weight of the metal will be 2W
Since, the metal is divalent, its chloride will have formula MCl2
Molecular weight of chlorine is 71g/mol
The molecular weight of its chloride is 2W + 71


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