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A certain metal salt solution is electro...

A certain metal salt solution is electrolysed in series with a silver coulometer. The weight of silver and the metal deposited are `0.5094g` and `0.2653g`. Calculate the valency of the metal if its atomic weight is nearly that of silver.

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
`(w_(1))/(w_(2))=((E_(1))_(Ag))/((E_(2))_("metal"))` , `(0.5094)/(0.2653) = (((at.)/(v.f.))_(Ag))/(((at.)/(v.f.))_("metal"))`
`(0.5094)/(0.2653)=((v.f)_(Ag))/(1)` , `v.f. = 1.0~~2`
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