A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the ____________________?

A. Atomic weight of the metal is 2

B. Equivalent weight of the metal is 8

C. Equivalent weight of the metal is 4

D. Atomic weight of the metal is 4

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