Question

The boiling points of 0.01 M aqueous solution of sucrose, NaCl and CaCl₂ would be - 

(A) the same 

(B) highest for sucrose solution  

(C) highest for NaCl solution 

(D) highest for CaCl₂ solution  

Answer 1

Correct Option :- (D) highest for CaCl₂ solution

Explanation :-

Q Elevation of boiling point is proportional to the no. of foreign species. 

CaCl₂ → Ca2⁺ + 2Cl^– ; 3

NaCl → Na⁺ + Cl^– ; 2 

Sucrose remains an dissociated mostly ; 1