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MCQEasyJEE Main 2023 · 11 April, Shift 2Raoult's Law & Vapour Pressure

Chemistry Question from JEE Main 2023 · 11 April, Shift 2

What weight of glucose must be dissolved in 100 g100 \, \text{g} of water to lower the vapour pressure by 0.20 mmHg0.20 \, \text{mmHg}? (Assume dilute solution is being formed)

Given : Vapour pressure of pure water is 54.2 mmHg54.2 \, \text{mmHg} at room temperature. Molar mass of glucose is 180 g mol−1180 \, \text{g mol}^{-1}

  • A

    2.59 g2.59 \, \text{g}

  • B

    3.59 g3.59 \, \text{g}

  • C

    3.69 g3.69 \, \text{g}

  • D

    4.69 g4.69 \, \text{g}

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