Question

Match the Column - I with the Column - II. Column – I a. Iron b. Calcium oxide(quick lime) c. Air d. Nitride ion Column - II 1. N3- 2. Element 3. Compound 4. Mixture 5. NO2-

Answer 1

Explanation:

Iron ----- Element

CaCO3 -------- Compound

Air --------- mixture

Nitride ion ------- N3 (N3 minus)