Two gas cylinders contain ethylene (ethene) and acetylene respectively. One test which can be used to distinguish between them is by?

  • A passing each gas through bromine water
  • B passing each gas through dilute potassium permanganate solution
  • C passing each gas through silver nitrate solution
  • D treating each gas catalytically with excess hydrogen gas
jamb 1978chemistry

The correct answer is C. passing each gas through silver nitrate solution

Acetylene reacts with ammoniacal AgNO3 solution to form a white precipitate of silver acetylide (AgC-=Cag) but ethylene does not

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