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A current of 2.0A when passed for 5 hours through a molten metal salt deposits 22.2g of metal of atomic

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A current of 2.0A when passed for 5 hours through a molten metal salt deposits 22.2g of metal of atomic weight 177.The oxidation state of the metal in the metal salt is

(a)  +1

(b)  +2

(c)  +3

(d)  +4

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Correct option  (c) +3

Explanation:

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