Question

Match the columns.
Column B
Column A
1. Reddish brown hydrated iron oxide
2. A mixture of oxygen and nitrous oxide
3. Manufacture of ammonia
4. Dissolving agent for various organic compounds
(a) Liquid carbon dioxide
(b) Radon
(c) Rust
(d) Anaesthesia gas
(e) Nitrogen 3
5. Treatment of cancer​

Answer 1

Answer:

1 vala column a

Explanation:

i hope it will help you

Answer 2

1Reddish brown hydrated iron oxide-c rust