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A compound has the molecular formula X(4...

A compound has the molecular formula `X_(4)O_(6)`. If `10 g "of" X_(4)O_(6)` has `5.72 g X`, atomic mass of `X` is:

A

`32am u`

B

`27am u`

C

`42am u`

D

`98a m u`

Text Solution

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The correct Answer is:
1
Let atomic mass of `X` is `'a'` amu
`(4a+96)gX_(4)O_(6) "_______"4agX`
`:. " "10gX_(4)O_(6) "_________" ((4axx10)/(4a+96))gX`
`(4axx10)/(4a+96)=5.72" "rArra=32`
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