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The boiling point of 0.1 molal aqueous s...

The boiling point of 0.1 molal aqueous solution of urea is `100.18 ^(@)C` atm. The molal elevation constant of water is

A

1.8

B

0.18

C

18

D

18.6

Text Solution

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The correct Answer is:
A
`K_(b) = (Delta T_(b))/m=(T_(b)-T^(@))/m=(100.18 -100)/0.1=0.18/0.1=1.8^(@)`
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