Q. Which among the following is used to generate light, to weld metals?
A) Acetylene
B) Ethylene
C) Oxalic acid
D) Glycol
✔ Correct Answer: Acetylene
Exam Insight
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A) Acetylene
B) Ethylene
C) Oxalic acid
D) Glycol
✔ Correct Answer: Acetylene
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