MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistrySolutionsDepression in freezing point
If 15 gm of a solute in 100 gm of water makes a solution that freezes at –1.0ºC, then 30 gm of the same solute in 100 gm of water will make a solution that freezes at
A.–0.5ºC
B.–2.0ºC✓ Correct
C.0ºC
D.2.0ºC
Explanation
The wt of solute in the same quantity of water is doubled The molality also becomes double Depression fT also becomes double The solution freezes at 02 C
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