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Two elements X and Y combines to form tw...

Two elements X and Y combines to form two compounds `XY_(2)andX_(3)Y_(2)` 0.1 mol of `XY_(2)` weighs 10 g and 0.05 mol of `X_(3)Y_(2)` weighs 9g, the atomic weights of X and Y are respectively

A

40, 30

B

60, 40

C

20, 30

D

30, 20

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