Question

In the following schematic diagram for the preparation of CO2 gas as shown in the figure, what would happen if the following changes are made?

(i) When an acid reacts with a metal carbonate
(ii) When an acid reacts with a metal bicarbonate (metal hydrogen carbonate) (iii) When an acid (H2SO4) reacts with a metal oxide (Zn0)​

Answer 1

Answer:

(i)=carbon dioxide is evolved which turns lime water milky but has no effect on potassium dichromate solution

(ii)=carbon dioxide is evolved which turns lime water milky but has no effect on potassium dichromate solution

(iii)=ZnO+H2SO4=ZnSO4+H2O

Answer 2

Answer:

The following will happen if the mentioned changes are made .

(a) Reaction will become very fast .

(b) No change will occur .

(c) Hydrogen gas will be not obtained .

(d) Hydrogen gas will be obtained .