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The element 'A' and 'B' combine together...

The element 'A' and 'B' combine together to give two compounds `A_(2) B_(3)` and `AB_(2)` . The weight of 0.2 mole of `A_(2) B_(3)` is 26 gm . The weight of 0.3 mole of `AB_(2)` is 24 g m . Then the atomic weight of A and B respectively

A

30, 40

B

50, 50

C

80, 20

D

40, 30

Text Solution

Verified by Experts

The correct Answer is:
D
`(2b+3a)xx0.05=9`
`(2b+a)xx0.1=10impliesa=40,b=30`
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