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Y g of non-volatile organic substance of...

`Y g` of non-volatile organic 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:s

A

(a) `(M)/(K_(b)Y)`

B

(b) `(4K_(b)Y)/(M)`

C

(c ) `(K_(b)Y)/(4M)`

D

(d) `(K_(b) Y)/(M)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta T = (1000 xx K_(b) xx Y)/(250 xx M) = (4K_(b) Y)/(M)`
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