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Two elements X (at mass =75) and Y(at . ...

Two elements X (at mass `=75`) and Y(at . mass`=16`) combine to give a compound having `75.8%` of `X` The formulaof the compound is :

A

XY

B

`X_(2)Y`

C

`XY_(3)`

D

`X_(2)Y_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Let 100 g mass of the compound
Moles of atoms of element `x = (75.8)/(75) square 1` , Moles of atoms of element `Y = (24.2)/(16) = 1.5`
So, formula of compound is `XY_(1.5)` or `X_(2)Y_(3)`
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