Question

Match column A with column B. 

Column A	Column B
(a) Blue salt changes to white and then black	(i) Ammonium dichromate
(b) Orange coloured compound changes to green.	(ii) Iodine
(c) Red compound changes to brown and then yellow.	(iii) Zinc Nitrate
(d) White to yellow when hot and white when cold.	(iv) Copper sulphate
(e) Violet solid changes to violet vapours.	(v) Red Lead

Answer 1

Column A	Column B
(a) Blue salt changes to white and then black	(iv) Copper sulphate
(b) Orange coloured compound changes to green.	(i) Ammonium dichromate
(c) Red compound changes to brown and then yellow.	(v) Red Lead
(d) White to yellow when hot and white when cold.	(iii) Zinc Nitrate
(e) Violet solid changes to violet vapours.	(ii) Iodine