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Question

A metal M forms a volatile chloride containing 65.5% chlorine. If the density of the chloride relative to hydrogen (i.e., V.D.) is 162.5, the molecular formula of the chloride is:

[M=56;Cl=35.5]

A
MCl3
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B
MCl6
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C
M2Cl6
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D
M2Cl3
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Solution

The correct option is C M2Cl6
As we know,
Molar mass = 2 x vapour density
2×162.5=325g
Mass of Cl in compound =0.655×325=213g
Mass of metal =325213=112g
So, compound is M2Cl6.

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