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The freezing point of 1 molar NaCl solut...

The freezing point of 1 molar NaCl solution assuming NaCl to be `100%` dissociated in water is: (`K_f` = 1.86 K `molality^-1`)

A

`-1.86^@C`

B

`-3.72^@C`

C

`+1.86^@C`

D

`+3.72^@C`

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The correct Answer is:
B
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