Study of Sulphur Compound Sulphuric Acid — Chemistry STD 10 — Question

A salt which absorbs moisture from air and changes into liquid state.

Select from the list given (a to e) one substances in each case which matches the description given in parts (i) to (v). (Note : Each substance is used only one in the answer)
(a) Nitroso Iron (II) Sulphate
(b) Iron (III) chloride
(c) Chromium sulphate
(d) Lead (II) chloride
(e) Sodium chloride
(i) A compound which is deliquescent
(ii) A compound which is insoluble in cold water, but soluble in hot water
(iii) The compound responsible for the brown ring during the brown ring test of nitrate iron
(iv) A compound whose aqueous solution is neutral in nature
(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution.

In a group, the atomic radii increase with increasing period number, explain this statement and justify it with reference to group 17.

Draw the structural formula for the following compound: acetone

Name the following:
The materials used as electrodes in the electrolytic extraction of aluminium.

Give the name and formula of the acid salt which gives sodium ions and sulphate ions in solution.

Name the hydrocarbon which:
A compound which will give acetylene (ethene) gas when treated with water.

Write a chemical equation to illustrate the acidic nature of nitric acid.

Give a balanced equation when dilute hydrochloric acid is added to : Zinc Metal
 

Name the Following:
Product obtained by heating concentrated nitric acid.