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How many grams of KCI should be add...

How many grams of KCI should be added to 1000 g of water , so that the freezing point reduces to - `10^(@)C?`
`(K_(f) "for water "=1.86""^(@)C kg mol ^(-1))`

A

`74.5 g `

B

`745 g `

C

`268 g `

D

`199.66 g `

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The correct Answer is:
D
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