In laboratory, ethylene and acetylene can be distinguished by
  • 1

    Br2/H20

  • 2

    KMn04 / OH- / H2O

  • 3

    Tollens'reagent

  • 4

    Fehling solution

Answer:- 3
Explanation:-

In laboratory, ethylene and acetylene can be distinguished by Tollen's reagent. Tollen's reagent is ammoniacal silver nitrate (2Ag(NH3)2OH).

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