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

Column I

Column II

A. Pendulum

1. Chrome steel

B. Malachite

2. Nickel Steel

C. Calamine

3. Na3AlF6

D. Cryolite

4. CuCO3. Cu (OH)2

5. ZnCO3


Codes

A B C D
1. 1 2 3 4
2. 2 4 5 3
3. 2 3 4 5
4. 4 5 3 2
Hint: Malachite is an ore of copper.
A. Pendulum is made up of nickel steel.
B. Molecular Formula of malachite is CuCO3. Cu (OH)2
C. Molecular formula of calamine is ZnCO3
D. Molecular formula of Cryolite is Na3AlF6