Ncert Exercises & Solutions

In comparison to a 0.01 M solution of glucose, the depression in the freezing point of a 0.01 M MgCl₂ solution will be -

1.	Same	2.	About twice
3.	About three times	4.	About six times

Hint: Depression in freezing point depends on i value

As we know depression in freezing point is directly related to van't Hoff factor (i) according to which greater the value of i greater will be the depression in freezing point.

Solution

0.01 M glucose

0.01 M MgCl₂

Hence, depression in freezing point of glucose is about 3 times of glucose.

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