Q.
Which one of the following solution has least freezing point ?
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a
0.2 m KCl
b
0.2 m NH2-CO-NH2
c
0.2 m C12H22O11
d
0.2 m CaCl2
answer is D.
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Detailed Solution
Depression of freezing point is a colligative property;Greater the concentration of the solution lesser the freezing point;T0-T∝ molality; Effective concentation in options 1,2,3,4 is 0.4 M, 0.2 M, 0.2 M and 0.6 M ;
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