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QUESTION
Q20) The equivalent weight of an element is 4. Its chloride has V.D. 59.25. Then the valency of element is ... [ BHU 1987]




SOLUTION

Molecular weight=2 ×V.D=119
Let x be the valency of metal then formula becomes MClx
Then molecular weight of metal=equivalent weight × valency
Now 119=x(4) + x(35.5)
∴ x=3
Answer: (b)