A. Nitrogen compounds
B. Organometallic compounds
C. Sulphur compounds
D. Oxygen compounds
Correct Answer: Sulphur compounds ✔
Last Updated: March 02, 2019
A. Nitrogen compounds
B. Organometallic compounds
C. Sulphur compounds
D. Oxygen compounds
Correct Answer: Sulphur compounds ✔
Last Updated: March 02, 2019