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Y g of non-volatile or ganic substance of molecular mass M is dissolved in 250 g benzene. Molal elevation constant of benzene is `K_(b)`. Elevation in its boiling point is given by :

A

`M/(K_bY)`

B

`(4K_bY)/(M)`

C

`(K_bY)/(4M)`

D

`(K_bYh)/(M)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta T=(1000xxK_b+Y)/(250xxM) =(4K_bY)/(M)`
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