- 1(current)
Q. No.When 5 g of non-volatile non-electrolyte solute is dissolved in 100 g of a certain solvent, the freezing point of the solvent decreases by 0.25 K. The molar mass of the solute is:
\([\text{K}_f \) of the given solvent \( =1.2 \mathrm{K ~kg}~ \mathrm{mol}^{-1}] \)
1. \(242.8 \mathrm{~g} \mathrm{~mol}^{-1}\)
2. \(238.2 \mathrm{~g} \mathrm{~mol}^{-1}\)
3. \(241.8 \mathrm{~g} \mathrm{~mol}^{-1}\)
4. \(240.0 \mathrm{~g} \mathrm{~mol}^{-1}\)
\([\text{K}_f \) of the given solvent \( =1.2 \mathrm{K ~kg}~ \mathrm{mol}^{-1}] \)
1. \(242.8 \mathrm{~g} \mathrm{~mol}^{-1}\)
2. \(238.2 \mathrm{~g} \mathrm{~mol}^{-1}\)
3. \(241.8 \mathrm{~g} \mathrm{~mol}^{-1}\)
4. \(240.0 \mathrm{~g} \mathrm{~mol}^{-1}\)
Subtopic: Depression of Freezing Point |
72%
From NCERT
NEET - 2024
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Hints
Please attempt this question first.
The freezing point of depression constant (Kf ) of benzene is 5.12 K kg mol–1. The freezing point depression for the solution of molality 0.078 m containing a non-electrolyte solute in benzene is-
(rounded off upto two decimal places):
1. 0.80 K
2. 0.40 K
3. 0.60 K
4. 0.20 K
Subtopic: Depression of Freezing Point |
87%
From NCERT
NEET - 2020
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
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Q. No.
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