Question

The correct order of increasing boiling points of the following aqueous solutions
`0.0001MNaCl(I)," 0.0001M Urea (II) ", 0.001MMgCl_(2)(III)," 0.01MNaCl(IV) is"`
A. `I lt II lt III lt IV`
B. `IV lt III lt II lt I`
C. `II lt I lt III lt IV`
D. `III lt II lt IV lt I`

Answer 1

Correct Answer - C
`:.` Order of ionisation is
`underset((IV))("0.01 M NaCl")gtunderset((III))("0.001 M MgCl"_(2))gtunderset((I))("0.0001 M NaCl")gtunderset((II))("0.0001 M Urea")`
`:.` Order of boiling point will also be the same.