For the purpose of illumination in hawker's lamps, which of the following gases is used? illuminant in lamps used by hawkers?

Options :
  1. Methane
  2. Ethylene
  3. Acetylene
  4. Hydrogen
Answer and Explanation :-

Answer: Option 3

Explanation:

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Hope makes you stronger, because it brings with it a sense of reason. Not a reason of how or why they were taken away from you, but a reason to live. Because it's a maybe. A 'maybe someday things won't always be this shit. And that 'maybe' immediately makes the shittiness better.
-Cecelia Ahern The Book of Tomorrow