1.

What should be the freezing point of aqueous solution containing \[17\,gm\] of \[{{C}_{2}}{{H}_{5}}OH\] in \[1000\,gm\] of water (water \[{{K}_{f}}\] = 1.86 \[\deg -kg\,mo{{l}^{-1}}\]             [MP PMT 1986]

A.             \[-{{0.69}^{o}}C\]          
B.                 \[-{{0.34}^{o}}C\]
C.                 \[{{0.0}^{o}}C\]                
D.                 \[{{0.34}^{o}}C\]
Answer» B.                 \[-{{0.34}^{o}}C\]


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