JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
Given below are two statements :
Statement (I) : Molal depression constant \(\mathrm{K}_{\mathrm{f}}\) is given by \(\frac{M_1 R T_f}{\Delta S_{f u s}}\), where symbols have their usual meaning.
Statement (II) : \(\mathrm{K}_{\mathrm{f}}\) for benzene is less than the \(\mathrm{K}_{\mathrm{f}}\) for water.
In the light of the above statements, choose the most appropriate answer from the options given below :
- A Statement I is incorrect but Statement II is correct
- B Both Statement I and Statement II are incorrect
- C Both Statement I and Statement II are correct
- D Statement I is correct but Statement II is incorrect
Answer & Solution
Correct Answer
(D) Statement I is correct but Statement II is incorrect
Step-by-step Solution
Detailed explanation
Statement-I Molar depression constant \(\mathrm{k}_f=\frac{\mathrm{M}_1 \mathrm{RT}_{\mathrm{f}}^2}{\Delta \mathrm{H}_{\text {fus }}}\)…
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