A gas decolourises alkaline KMnO_4 solution but does not give precipit

1.	A gas decolourises alkaline KMnO_4 solution but does not give precipitate with AgNO_3, it is
Answer» <html><body><p>`CH_4`<br/>`C_2H_4`<br/>`C_2H_2`<br/>`C_2H_6`</p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`C_2H_4 (CH_2=CH_2)` <a href="https://interviewquestions.tuteehub.com/tag/decolourises-2567646" style="font-weight:bold;" target="_blank" title="Click to know more about DECOLOURISES">DECOLOURISES</a> `KMnO_4` solution but does not <a href="https://interviewquestions.tuteehub.com/tag/give-468520" style="font-weight:bold;" target="_blank" title="Click to know more about GIVE">GIVE</a> <a href="https://interviewquestions.tuteehub.com/tag/ppt-592533" style="font-weight:bold;" target="_blank" title="Click to know more about PPT">PPT</a>. with `AgNO_3` solution.</body></html>

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