Which of the following reactions gives H_(2)C=C=C=CH_(2) – InterviewSolution

1.	Which of the following reactions gives H_(2)C=C=C=CH_(2)
Answer» `CH_(2)Br-CBr=CH_(2)overset(ZN//CH_(3)OH)to` `HC-=C-CH_(2)-COOHunderset(40^(@)C)overset(Aq.K_(2)CO_(3))to` `CH_(2)Br-C-=C-CH_(2)Brunderset("HEAT")overset(Zn)to` `2CH_(2)=CH-CH_(2)-Ito` Solution :`CH_(2)Br-C-=C-CH_(2)Br underset(DELTA)overset(Zn)toCH_(2)=C=C=CH_(2)`.

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