1.

Cis-2-butene and trans-2-butene can be distinguished on the basis of

Answer»

their optical properties <BR>their reduction products
the products they give on ozonolysis
the products they give on ADDITION of bromine.

Solution :Options (a), (b) and (c) are wrong since cis-2- butene and trans-2-butene are not OPTICALLY active, give same product on hydrogenation, ie., n-butane and same product on ozonolysis, ie.,` CH_(3) `CHO.
But addition of `Br_(2)` to these two isomers gives DIFFERENT products. Whereas cis-2-butene gives d-mixture of 2,3-dibromobutane, trans-2-butene gives meso-2,3 dibromobutane.


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