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Molal depression constant for water is 1...

Molal depression constant for water is `1.86^@C`. What is freezing point of a 0.05 molal solution of a non electrolyte in water?

A

`- 1.86^(@)C`

B

`0.186^(@)C`

C

`-0.372^(@)C`

D

`+0.372^(@)C`

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