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Solutions question

2022 · 25 Jul · Shift 1 · Q3
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Solutions question

2022 · 25 Jul · Shift 1 · Q3

JEE MainChemistrySolutionsMCQ+4 / −1
The depression in freezing point observed for a formic acid solution of concentration 0.5 mL L−10.5 \mathrm{~mL} \mathrm{~L}^{-1}0.5 mL L−1 is 0.0405∘C0.0405^{\circ} \mathrm{C}0.0405∘C. Density of formic acid is 1.05 g mL−11.05 \mathrm{~g} \mathrm{~mL}^{-1}1.05 g mL−1. The Van't Hoff factor of the formic acid solution is nearly : (Given for water kf=1.86 k kg mol−1\mathrm{k}_{\mathrm{f}}=1.86\, \mathrm{k} \,\mathrm{kg}\,\mathrm{mol}^{-1}kf​=1.86kkgmol−1 )
  1. A
    0.8
  2. B
    1.1
  3. C
    1.9
  4. D
    2.4
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