Question

Q.2) Name the following: 1. A molecule of a compound containing two oxygen atoms and one nitrogen atom. 2. A radical containing one nitrogen and four hydrogen atoms. 3. A compound formed when iron [Fe2+] combines with oxygen [O2-]. 4. A non-metal which forms a polyatomic molecule with more than three atoms.

Answer 1

Explanation:

1.NO2

2.NH4+

3.FeO

4.C