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Question

3 g of an oxide of a metal is converted completely to 5 g chloride. Equivalent mass of metal is:

A
33.25
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B
3.325
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C
12
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D
20
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Solution

The correct option is A 33.25
Ans: A
Let metal is represented = M
and let molor mass of M = x
metal form metal oxide so it's valency is 2
Mole of metal oxide(MO} = mole of MCl2
3x+16=5x+71
x = 66.5
equivalent mass of metal = 66.52 = 33.25

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