mcqshub.pk – Mcqs Hub Multiple Choice Questions With Answers For Competitve Exams – CSS PCS CCE FPSC PPSC SPSC BPSC NTS STS IBA
(a) Oxygen and ethylene
(b) Oxygen and hydrogen
(c) Acetylene and oxygen
(d) Acetylene and hydrogen
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Correct Answer
(c) Acetylene and oxygen
Submitted By: Syed Bilawal Shah (Sain)
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