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The percentage of an element M is 53 in ...

The percentage of an element M is 53 in its oxide of molecular formula `M_(2)O_(3)`. Its atomic mass is about -

A

`45`

B

`9`

C

`18`

D

`27`

Text Solution

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The correct Answer is:
D
`100` gm of metal oxide contains 53 g of metal
`:. E` of element `= (53)/(47) xx 8 ~~ 9`
`:.` Atomic mass `= E xx "valency"`
`= 9 xx 3 = 27 gm`
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