1.

A gas decolourises alkaline KMnO_4 solution but does not give precipitate with AgNO_3, it is

Answer»

`CH_4`
`C_2H_4`
`C_2H_2`
`C_2H_6`

SOLUTION :`C_2H_4 (CH_2=CH_2)` DECOLOURISES `KMnO_4` solution but does not GIVE PPT. with `AgNO_3` solution.


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