Ncert Exercises & Solutions

Match the items of Column I with items of Column II and assign the correct code.

Column I	Column II
A. Sapphire	1. Al₂O₃
B. Sphalerite	2. NaCN
C. Depressant	3. Co
D. Corundum	4. ZnS
	5. Fe₂O₃

Codes

A B C D

1. 3 4 2 1

2. 5 4 3 2

3. 2 3 4 5

4. 1 2 3 4