Describe the test of chlorine gas with damp litmus paper?

Draw a neat labelled diagram for the following experiment.

To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.

In the laboratory preparation of oxygen from hydrogen peroxide - answer the following:

Draw a neat labelled diagram for the method used in the above preparation.

How can you identify the gas formed is carbon dioxide in the following reaction,

${\mathrm{CaCO}}_3+2\mathrm{HCl}\to {\mathrm{CaCl}}_2+{\mathrm{H}}_2\mathrm{O}+{\mathrm{CO}}_2\uparrow$

Write the characteristic test for the ${\mathrm{H}}_2$ gas.

In the laboratory preparation of oxygen from hydrogen peroxide - answer the following:

Name the catalyst used in the preparation and state it’s function.

In the laboratory preparation of oxygen from hydrogen peroxide - answer the following:

State the method of collection of the oxygen gas giving reasons.

Name the colourless gas that evolves when potassium reacts with water. How will you test this gas?

In the laboratory preparation of oxygen from hydrogen peroxide - answer the following:

State the word equation for the reaction involving the above preparation of oxygen.