A metallic carbide on treatment with water gives a colouless gas which burns readily in air and gives a precipitate with ammonical silver nitrate. The gas is
A. Methane
B. Ethene
C. Ethyne
D. Propane

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1 Answers

Correct Answer - C
`CaC_(2)+2H_(2)O to Ca(OH)_(2)+C_(2)H_(2)`
`C_(2)H_(2)+(5)/(2)O_(2) to 2CO_(2)+H_(2)O`
`HC-=CH+2[Ag(NH_(3))_(2)]Oh to underset("White ppt.")(AgC)-=Cag+2H_(2)O+4NH_(3)`

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