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The equivalent mass of a metal is 29.73 ...

The equivalent mass of a metal is 29.73 and the vapour density of its chloride is 130.4 find out the atomic mass of the metal.

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The correct Answer is:
Atomic mass=118.92
Valency`=(2xxV.D.)/("Eq.mass"+35.5)=(2xx(130.4))/((29.73+35.5))=4`.
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