25 mL of an aqueous solution of KCl was found to require 20 mL of 1 MAgNO₃ solution when titrated using a K₂CrO₄ as indicator.
The depression in freezing point of KCl solution with 100% ionization will be:[Kₜ=2℃. kg mol⁻¹ and molarity=molality]
a. 5.0℃
b. 3.2℃
c. 1.6℃
d. 0.8℃