Identification of Gases

Give a chemical test to distinguish between$\mathrm{HCl} \mathrm{and} {\mathrm{Cl}}_2$ gases.

Which gas will evolve by the reaction of manganese dioxide with hydrochloric acid?

Which gas will evolve by the reaction of  manganese dioxide with hydrochloric acid? Explain in detail.

Select whether the following statement is true or false:

Nitrogen dioxide gas can be identified by its violet colour.

Write the balanced chemical equation for the thermal decomposition of cupric nitrate.

Select what would be the colour of the gas if it has to be identified as nitrogen dioxide gas.

Hydrated copper sulphate loses its water molecules on heating and turns white.

Water vapours when passed over anhydrous copper sulphate, the colour changes from:

Reaction between a solid sodium salt A with concentrated sulphuric produces a gas B which when reacts with ammonia forms ammonium chloride. Identify A and B.

White solid mass is observed when glass rod dipped in ammonia is brought near the fumes of hydrogen chloride. The white mass is:

The products when potassium chloride and sulphuric acid reacts are:

When solid sodium chloride reacts with liquid sulphuric acid, steamy fumes of a gas is formed that turns blue litmus red. Write the reaction with the identification of the gas formed.

Identify the gas formed when manganese dioxide is placed in concentrated hydrochloric acid.

Electrolysis of sodium chloride produces a gas which can be observed as a:

Decomposition of a substance produces a gas that turns lime water milky. The gas produced is:

A glowing splint is placed near the test tube containing gas $\mathrm{X}$. The splint burns again. Which of the following is the gas $\mathrm{X}$?

Name the gas that turns lime water milky but has no effect on acidified potassium dichromate paper.

Name the gas that smells of rotten eggs.

Name the gas that rekindles a glowing splint.

Name the gas that evolved when the aluminium powder is mixed with sodium hydroxide solution.