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In an experiment, 4g of M(2)O(x) oxide w...

In an experiment, 4g of `M_(2)O_(x)` oxide was reduced to 2.8g of the metal. If the atomic mass of the metal is `56g"mol"^(-1)`, the number of oxygen atoms in the oxide is:

A

1

B

2

C

3

D

4

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The correct Answer is:
3
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