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When 6 xx 10^22 electrons are used in t...

When `6 xx 10^22` electrons are used in the electrolysis of a metallic salt, 1.9 gm of the metal is deposited at the cathode. The atomic weight of that metal is 57. So oxidation state of the metal in the salt is

A

`+2`

B

`+3`

C

`+1`

D

`+4`

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The correct Answer is:
B
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