Which of the following combination of gases is used for metal welding? i. Oxygen and...
CHEMISTRY
JAMB 1992
Which of the following combination of gases is used for metal welding? i. Oxygen and ethyne, ii. Hydrogen and ethyne, iii. Hydrogen and oxygen, iv. Ethyne, hydrogen and oxygen.
- A. i and ii
- B. ii and iv
- C. i and iii
- D. ii and iv
Correct Answer: A. i and ii
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