Which of the following are not true ?

Options

A. addition of `HgI_(2)` solid to aq KI solution increases the B.Pt.
B. Addition of liter solid `AgNO_(3)` to KCl solution decreases freazing point
C. Addition of litre solid `NaOH` to HCN solution increases the B.Pt.
D. 0.1M NaCl ffreazes at a lower temperature than 0.2 M NaCl solution

Answer

A, B, D