Class 10 ICSE CHEMISTRY questions on HYDROGEN CHLORIDE -2

Write balanced equations for the following reactions.

1.      Laboratory preparation of HCl gas.

2.      Conc. HCl is heated with Red Lead (Pb₃O₄).

3.      Dil. HCl is added to Copper oxide

4.      A piece os Magnesium is added to dil. HCl.

5.      Conc. HCl with MnO₂.

6.      FeCl₂ from HCl

7.      NH₄Cl from HCl

8.      Cl₂ from Conc. HCl

9.      H₂S from dil. HCl

State your observations

1.      Excess Ammonium hydroxide is added to the precipitate obtained by adding dil. HCl to AgNO₃ solution.

2.      When dil. HCl is added to Na₂S.

3.      Conc. HCl is heated with MnO₂.

4.      Dil. HCl is added to Magnesium ribbon.

5.      Dil. HCl is added to AgNO₃ solution.

6.      Sodium chloride is heated with Conc. Sulphuric acid.

7.      In the fountain experiment using HCl gas.

8.      A glass rod dipped in NH₄OH is brought near the open end of a gas jar containing HCl gas.

9.      A few drops of dil. HCl is added to AgNO₃ solution followed by addition of NH₄OH.

10.  Dil. HCl added to Sodium carbonate crystals.