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If 0.5 m of Ca(NO3)2 and 0.75 m of KOH i...

If 0.5 m of `Ca(NO_3)_2` and 0.75 m of KOH is taken, then the depression in freezing point is

A

greater in `Ca(NO_3)_2` because number of ions are greater

B

greater in KOH because concentration is high

C

equal in both and freezing point is less than `0^@C` because ionic concentration is same

D

equal to `0^@C` in both because ionic concentration is negligible.

Text Solution

Verified by Experts

The correct Answer is:
C
Ionic concentration of `Ca(NO_3)_2 = 0.5 xx 3 = 1.5`
Ionic concentration of `KOH = 0.75 xx 2 = 1.50`
Ionic concentration is same, so depression in freezing point will also be same.
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