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Question

Question: Which of the following will have the highest f.pt at one atmosphere?...

Which of the following will have the highest f.pt at one atmosphere?

A

0.10.1 M NaCl solution

B

0.10.1M sugar solution

C

0.1MBaCl20.1MBaCl_{2}solution

D

0.1MFeCl30.1MFeCl_{3}solution

Answer

0.10.1M sugar solution

Explanation

Solution

For the same concentration of different solvents any

colligative property i\propto i

For NaCl,i=2NaCl,i = 2

Sugar solution i = 1

BaCl2,i=3;FeCl3,i=4BaCl_{2},i = 3;FeCl_{3},i = 4

Thus for sugar solution depression in freezing point is minimum i..e, highest freezing point.