Verified Solution • 2025–26 Session moderate

QAIPMT-2010-Ch-2008: NEET 2010 Chemistry - Class 12 AIPMT-2010-Ch-2008 Solution: A solution of sucrose (molar mass = 342 g mol\(^{-1}\)) has…

A solution of sucrose (molar mass = 342 g mol−1^{-1}) has been prepared by dissolving 68.5 g of sucrose in 1000 g of water. The freezing point of the solution obtained will be (KfK_f for water = 1.86 K kg mol−1^{-1})

Multiple Choice Options

  • A −0.372∘C-0.372^\circ C
  • B −0.520∘C-0.520^\circ C
  • C +0.372∘C^\circ C
  • D −0.570∘C-0.570^\circ C

Step-by-Step Verified Solution

Depression in freezing point, _ T f = K f _ m m = w B M B _ 1000 W A = 68.5 _ 1000 342 _ 1000 _ T f = 1.86 _ 68.5 342 = 0.372 o C _ T f = 0 - 0.372 o C = - 0.372 o C

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