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Question

MeCCMeNa/NH3(liq.)−−−−−−−EtOH,33CX=dil.alkaline KMnO4−−−−−−−−−−− Product(s)
The product(s) from the above reaction will be

A
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B
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C
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D
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Solution

The correct options are
A
C
Na in liq. NH3 reduces alkynes to trans alkenes. Cold alkaline KMnO4 does syn dihydroxylation on alkene to produce vicinol diols. Here trans alkenes give pair of enantiomers while cis alkenes give meso compound.


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