Question

addition of HgI2 to aqueous KI solution show an increase in vapour pressure. why?

Answer 1

This is due to reactivity series that k ie potassium is highly reactive metal and reacts very vigorous.

Answer 2

Answer:

Freezing point of the solution will increase. Mercuric Iodide will react with Potassium Iodide to form dipotassium tetraiodomercury. The reaction is given below : 2KI + HgI2 = K2[HgI4] This association will decrease the number of ions in the solution as a result of which Van't Hoff Factor (i) will decrease as ndecreases from 4 to 3.