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 :A. `(M)/(K_(b)y)`B. `(4K_(b)y)/(M)`C. `(K_(b)y)/(4M)`D. `(K_(b)y)/(M)`

Y g of non-volatile organic substance of molecular mass M is dissolved

1.	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 :A. `(M)/(K_(b)y)`B. `(4K_(b)y)/(M)`C. `(K_(b)y)/(4M)`D. `(K_(b)y)/(M)`
Answer» Correct Answer - B `Delta T = K_(b) xx (w_(B) xx 1000)/(m_(B) xx w_(A))` `= K_(b) xx (y xx 1000)/(M xx 250) = (4 K_(b) y)/(M)`

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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 :A. `(M)/(K_(b)y)`B. `(4K_(b)y)/(M)`C. `(K_(b)y)/(4M)`D. `(K_(b)y)/(M)`

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