1.

Which one of the following characteristics apply to both ethene and ethyne

Answer»

Explode when MIXED with chlorine
Decolourise Baeyer's REAGENT giving brown PRECIPITATE
Rapidly ABSORBED by cold conc `H_2SO_4`
Form white precipitate with silver nitrate solution

Solution :`CH_2=CH_2+underset"ALK."(KMnO_4)underset(H_2O)overset"[O]"to undersetunderset(OH)(|)CH_2-underset"Colour less"undersetunderset(OH)(|)(CH_2)+underset"Brown"(MnO_2)`
`CH-=CH+underset"alk."(KMnO_4)overset"[O]"to underset"Oxalic acid"undersetunderset"COOH""|""COOH"+underset"Brown"(MnO_2)`


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