Electrolysis — Chemistry STD 10 — Question

Solution P has a pH of 13, solution Q has a pH of 6 and solution R has a pH of 2. Which solution will liberate ammonia from ammonium sulphate on heating?

Name : A salt which is a weak electrolyte.

Name the hydrocarbon which forms a red precipitate with ammoniacal solution of copper (I) chloride .

Name the following:
The process of heating an ore to a high temperature in the presence of air.

Two gases which react with ammonia to form dense white fumes.

Name a compound which will give acetylene gas, when treated with water.

What property of ammonia is demonstrated by the fountain experiment?

When an ammonium hydroxide solution is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide giving an inky blue solution. What is the cation present in solution B?

In the formation of magnesium chloride (by direct combination between magnesium and chloride), name the substance that is oxidized and the substance that is reduced.