Chemistry Ch 1 Some Basic Concepts of Chemistry Class 11 Notes | EduRev

Class 11 : Chemistry Ch 1 Some Basic Concepts of Chemistry Class 11 Notes | EduRev

The document Chemistry Ch 1 Some Basic Concepts of Chemistry Class 11 Notes | EduRev is a part of Class 11 category.
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Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are

A:  

40, 30 

B:  

60, 40 

C:  

20, 30 

D:  

30, 20

The correct answer is A but I want clarification how we can find the answer to this question.

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