Which has the highest boiling point?

Question

Which has the highest boiling point? (A) 0.1 m Na2SO4 (B) 0.1 m Al(NO3)3 (C) 0.1 m MgCl2 (D) 0.1 m C6H2O6 (glucose)

Tardigrade Admin · Accepted Answer

Tb (boiling point) =T0 (Solvent) + Δ Tb Δ Tb=m× Kb × i m (same) = 0.1 molal Δ Tb propto i Greater the value of i, larger the boiling point of solution (a) Na2SO4 leftharpoons 2Na++SO2-4, 3 (b) C6H12O6 (non-electrolyte), 1 (c) MgCl2 leftharpoons Mg2++2Cl-, 3 (d) Al(NO3)3 leftharpoons Al3++3NO-3, 4

Q. Which has the highest boiling point?

$0.1 m N a_{2} S O_{4}$

$0.1 m A l (N O_{3})_{3}$

$0.1 m M g C l_{2}$

$0.1 m C_{6} H_{2} O_{6}$ (glucose)

Q. Which has the highest boiling point?

0.1mNa2​SO4​

0.1mAl(NO3​)3​

0.1mMgCl2​

0.1mC6​H2​O6​ (glucose)

$0.1 m N a_{2} S O_{4}$

$0.1 m A l (N O_{3})_{3}$

$0.1 m M g C l_{2}$

$0.1 m C_{6} H_{2} O_{6}$ (glucose)