A) \[0.01M\text{ }NaCl\]
B) \[0.01M\text{ }N{{a}_{2}}S{{O}_{4}}\]
C) \[0.1M\]Sucrose
D) \[0.1M\text{ }NaCl\]
Correct Answer: A
Solution :
: Depression in freezing point, \[\Delta {{T}_{f}}=i{{K}_{f}}m\] \[\Delta {{T}_{f}}\]will follow the order: \[\underset{i=2}{\mathop{0.1M\,\,NaCl}}\,>\underset{i=1}{\mathop{0.1M\,Sucrose}}\,>\underset{i=3}{\mathop{0.01M\,N{{a}_{2}}S{{O}_{4}}}}\,>\] \[\underset{i=2}{\mathop{0.01M\,NaCl}}\,\] Depression in freezing point is minimum in case of \[0.01M\text{ }NaCl\]solution hence, it will have maximum freezing point.
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