Acids, Bases and Salts — Chemistry STD 10 — Question

What happen to the crystals of washing soda when exposed to air? Name the phenomenon exhibited.

Write the colour of the following salt : Cupric salts.

Name two indicators which can identify the presence of an acid?

Write the equation for the reaction where the aluminium oxide for the electrolytic extraction of aluminium is obtained by heating aluminium hydroxide.

Name a reagant which can be used to distinguish between ethane and ethene.

Name the process used for the large scale manufacture of sulphuric acid.

The element with the least ionisation potential in the third period.

The salt which gives a yellow residue on heating.

Hydrogen chloride dissolves in water to form an acidic solution.
Name the experiment which demonstrates that hydrogen chloride is very soluble in water.

Name a non-metallic element which forms acidic and neutral oxides