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1g of a non-volatile non-electrolyte sol...

1g of a non-volatile non-electrolyte solute is dissolved in 100g of two different solvents A and B whose ebullioscopic constants are in the ratio of 1 : 5. The ratio of the elevation in their boiling points, `(DeltaT_(b)(A))/(DeltaT_(b)(B))` is

A

`1:5`

B

`10:1`

C

`1:0.2`

D

`5:1`

Text Solution

Verified by Experts

The correct Answer is:
A
`(DeltaT_b)_A=(K_b)_Axxm_A`
`(DeltaT_b)_B=(K_b)_Bxxm_B`
`((DeltaT_b)_A)/((DeltaT_b)_B)=1/5xx(1/(M.W.)xx1000/100)/(1/(M.W.)xx1000/100)=1/5`
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