Question

The equivalent weight of an element is 4.Its chloride has a V.D 59.25.Then the valency of the element is____

Answer 1

Molecular mass = 2× vapour density
so...
molecular mass of it's chloride = 2× 59.25 =118.5g

Equivalent mass of it's chloride = equivalent mass of element + equivalent mass of chloride

equivalent mass of it's chloride= 4+35.5 =39.5

We also know that...

equivalent mass of it's chloride= molecular mass of it's chloride/ valency

=> 39.5=118.5/valency

=> valency=118.5/39.5=3

Hence, the valency of element = 3

hope it helps you....
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