A. Oxygen and hydrogen
B. Oxygen, hydrogen, acetylene and nitrogen
C. Oxygen, acetylene and argon
D. Oxygen and acetylene
Submitted by: Rashid Mehmood
Correct Answer: Oxygen and acetylene ✔
Last Updated: January 09, 2020
A. Oxygen and hydrogen
B. Oxygen, hydrogen, acetylene and nitrogen
C. Oxygen, acetylene and argon
D. Oxygen and acetylene
Submitted by: Rashid Mehmood
Correct Answer: Oxygen and acetylene ✔
Last Updated: January 09, 2020