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0.72 gm of an oxide of a metal M on redu...

0.72 gm of an oxide of a metal M on reduction with `H_(2)` gave 0.64 g of the metal . The atomic weight of the metal is 64 . The empirical formula of the compound is

A

MO

B

`M_(2) O`

C

`MO_(2)`

D

`M_(2) O_(3)`

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The correct Answer is:
B
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