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If for a sucrose, elevation in boiling p...

If for a sucrose, elevation in boiling point is `1.0^(@)C`, then what will be the boiling point of `NaCl` solution for same molal concentration?

A

`1.0^(@)C`

B

`2.0^(@)C`

C

`3.0^(@)C`

D

`4.0^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaT_(b)=iK_(b)m`
For `NaCl` solution, `i=2`
`:.`for NaCl,`DeltaT_(b)=2`
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Elevation Of Boiling Point|Summary

Elevation in boiling point of 0.1 m CaCl_(2) , solution less / more than 0.1 m NaCl solution.

Figure explains elevation in boiling point when a non-volatile solute is added to a solvent. Variation of vapour pressure with temperaure and elevation in boiling point is marked. Given that DeltaT_(b) is the elevation in boiling point of the solvent in a solution of molarity m then lim_(m rarr 0) ((Delta T_(b))/(m)) is equal to: