4g of M(2)O (y) oxide was reduced to 2....

4g of` M_(2)O _(y)` oxide was reduced to 2.8 g of the metal in an experiment. If the atomic mass of the metal is `56 gmol^(-1),` then find the number of oxygen atoms in the oxide.

A

1

B

2

C

3

D

4

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The correct Answer is:

C

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