Answer to Question #25047 in Organic Chemistry for Aqib zaman

Question #25047
How will u distinguish between?? 1)propene and propane 2)1-butene and 1-butyne 3)2-butene and 2-butyne 4)formaldehyde and acetaldehyde
1
Expert's answer
2013-02-27T03:53:14-0500
1) Differ by the presence of the double bond (in the reaction with potassium permanganate propene discolors it)
2) The first carbon atom in butene - 1 has double bond, butyne- 1 has& triple bond.
3) In the second carbon atom in the butene - 2 there is double bond, butyn-2 has& triple bond.
4)In acetaldehyde there's one methyl group more than in formaldehyde.

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