A metallic carbide on reaction with water gives a colourless gas which burns readily in air and gives a…

A metallic carbide on reaction with water gives a colourless gas which burns readily in air and gives a precipitate with ammonical silver nitrate solution. What is the gas evolved in reaction ?
  1.  CH4
  2. C2H6
  3. C2H4
  4. C2H2

Asked in: JEE-TOPICTESTS-CHEMISTRY

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