Question

Give reasons for the following :

(a) At higher altitudes, people suffer from a disease called anoxia. In this disease, they become weak and cannot

think clearly.

(b) When mercuric iodide is added to an aqueous solution of KI, the freezing point is raised.

Answer 1

(a)It is because at higher altitude oxygen is much more less then plain areas.So for this reason.

Answer 2

Hey !!

(a) At higher altitudes, partial pressure of oxygen is less than that at ground level, so that oxygen concentration become less in blood or tissues. Hence, people suffer from anoxia.

(b) Due to the formation of complex K₂ [HgI₄] number of particles in the solution decreases and hence the freezing point is raised.

Hope it helps you !!