Question

Match the following :

Column A	Column B
1. A substance that turns moist  starch iodide paper blue.	A. Ammonium sulphate
2. A compound which releases a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings.	B. Lead carbonate
3 . A solu tion of this compound gives a dirty green preci pi ta te with sodium hydroxide.	C. Chlorine
4 . A compound which on heating with sodium hydroxide  produces a gas which forms dense white fumes with hydrogen chloride.	D. Copper nitrate
5 . A white solid which gives a yellow residue on heating.	E. Ferrous sulphate

Answer 1

Column A	Column B
1. A substance that turns moist  starch iodide paper blue.	Chlorine
2. A compound which releases a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings.	Copper nitrate
3 . A solu tion of this compound gives a dirty green preci pi ta te with sodium hydroxide.	Ferrous sulphate
4 . A compound which on heating with sodium hydroxide  produces a gas which forms dense white fumes with hydrogen chloride.	Ammonium sulphate
5 . A white solid which gives a yellow residue on heating.	Lead carbonate