moles of {AB}_{2} weigh 125 \\times 10^{-3} {kg} and 10 moles of {A}_{2} {B}_{2} weigh 300 \\times 10^{-3} {kg} . The molar mass of{A} ( {M}_{ {A}}\) and molar mass of {B} ({M}_{ {B}} ) in {\kg} {\mol}^{-1} are: [12 Apr 2019 Shift 1]

Correct Answer is : MA=5×10−3 and M B=10×10−3

M_{A}=10\times 10^{-3} and M_{B}=5 \\times 10^{-3}

{M}_{ {A}}=25 \times 10^{-3} and {M}_{ {B}}=50 \\times 10^{-3}

M_{A}=50 \\times 10^{-3} and M_{B}=25\times 10^{-3}

{M}_{{A}}=5 \\times 10^{-3} and {M}_{ {B}}=10 \times 10^{-3}

JEE Main 12 Apr 2019 Paper 1 Solved Paper

Section: Chemistry

Question : 37 of 90

Marks: +1, -0

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]

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