Which of the following aqueous solution will have the boiling point `102.2^(@)`C? The molal elevation constant for water is 2.2 K kg `mol^(-1)`.

Options

A. 1 m `CH_3COOH `
B. 1 m NaCl
C. 1M NaCl
D. 1 m glucose

Answer

D

Explanation

`DeltaT_b=2.2=ixx 2.2 xx 1`
`rArr` i = 1