(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Chemistry

Why is hydrogen placed with alkali metals?

Hydrochloric acid contains (i) hydrogen (ii) chlorine. Prove it. Write equations for the reactions.

Name a black metallic oxide which reacts with hydrochloric acid to give a coloured solution.

Name two gases which chemically combine to form a liquid.

Name a chloride which is solube in excess of ammonium hydroxide

Name the chemical in which gold can be dissolved.

Name the experiment which demonstrates that hydrogen chloride is soluble in water.

Give reason for the following:
silver nitrate solution can be used to distinguish HCl from HNO₃

Complete and balance the following reaction, state whether dilute or conc. acid is used.

\[\ce{NH4OH + HCl -> }\]

Complete and balance the following reaction, state whether dilute or conc. acid is used.

\[\ce{NaHSO3 + HCl ->}\]

Complete and balance the following reaction, state whether dilute or conc. acid is used.

\[\ce{Pb(NO3)2 + HCl ->}\]

Complete and balance the following reaction, state whether dilute or conc. acid is used.

\[\ce{Pb3O4 + HCl ->}\]

Complete the following reaction and balance them.
Zn+ 2HCl ⟶

Take an element from an alkali metal and one from an alkaline earth metal and write an equation  for their action with:

Hydrochloric acid,

Complete the following reaction and balance them.
Ca(HCO₃)₂ + 2HCl →

Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:

Oxygen

Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:

Sulphuric acid

Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:

Water.

Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.

Write the balanced equation for the reaction between ammonia and sulphuric acid.