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JEE Main 2019 · 12 April · Shift I

JEE Main 2019 Chemistry question on Some Basic Concepts of Chemistry

5 moles of AB2AB_2 weight 125×10−3125 \times 10^{-3} kg and 10 moles of A2B2A_2B_2 weight 300×10−3300 \times 10^{-3} kg. The molar mass of AA (MA)(M_A) and molar mass of BB (MB)(M_B) in kg mol−1^{-1} are
  1. A.
    MA=10×10−3M_A = 10 \times 10^{-3} and MB=5×10−3M_B = 5 \times 10^{-3}
  2. B.
    MA=50×10−3M_A = 50 \times 10^{-3} and MB=25×10−3M_B = 25 \times 10^{-3}
  3. C.
    MA=25×10−3M_A = 25 \times 10^{-3} and MB=50×10−3M_B = 50 \times 10^{-3}
  4. D.
    MA=5×10−3M_A = 5 \times 10^{-3} and MB=10×10−3M_B = 10 \times 10^{-3}
Show answer

Correct option: D

[JEE Main 2019 · 12 April · Shift I]

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