1.

On passing electric current in to a solution of salt of metal, M the reaction at cathode takes place as : M^(2+) + 2e^(-) to M. The atomic weight of M is 65. What is the equivalent weifht of the metal ?

Answer»

260
130
65
32.5

Solution :M requires 2 MOL of `e^(-)` as it is divalent .
`therefore ` Equivalent weight `=("ATOMIC Weight")/("VALENCY")=(65)/(2)=32.5`


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