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

Options

A. `{:(A,B,C,D),(3,4,2,1):}`
B. `{:(A,B,C,D),(5,4,3,2):}`
C. `{:(A,B,C,D),(2,3,4,5):}`
D. `{:(A,B,C,D),(1,2,3,4):}`

Answer

A, B, C, D

Explanation

A.Sapphire is a gemstone which contain Co.
B. Molecular formula of sphalerite is ZnS
C. NaCN is used as a depressant in froth floatation method.
D. Molecular formula of corundum is `Al_(2)CO_(3)`.