Suppose two elements X and Y combine to form two compounds XY _2 and X _2 Y _3. If 0.05 mole of XY _2 weighs 5 g while 3.011 \times 10^{23} molecules of X _2 Y _3 weighs 85 g , then atomic masses of X and Y are respectively :

JEE Main 2026 Model Paper 1

Question : 29 of 75

Marks: +1, -0

Suppose two elements X and Y combine to form two compounds XY2 and X2Y3. If 0.05 mole of XY2 weighs 5 g while 3.011×1023 molecules of X2Y3 weighs 85 g , then atomic masses of X and Y are respectively :

20,30
30,40
40,30
80,60

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