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