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JEE Main 12 Apr 2019 Paper 1 Solved Paper

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Question : 37

Total: 90

moles of AB2 weigh 125×10−3 kg and 10 moles of A2 B2 weigh 300×10−3kg . The molar mass of A (M A) and molar mass of B (M B) in ‌kg‌mol−1 are:

[12 Apr 2019 Shift 1]

MA=10×10−3 and MB=5×10−3
M A=25×10−3 and M B=50×10−3
MA=50×10−3 and MB=25×10−3
MA=5×10−3 and M B=10×10−3

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