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Dehydrohalogenation for Alkenes

44. In the de...

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44. In the dehydrohalogenation of 2-bromobutane, which conformation leads to the formation of cis-2-butene?

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Q. Dehydrohalogenation of alkyl halides leads to the formation of .

Q. The dehydrohalogenation of 2-bromobutane with alcoholic

K O H

Q. Which compound gives 2- butene on dehydrohalogenation ?

2

-Bromobutane on reaction with sodium ethoxide in ethanol gives

1

-butene as a major product. Reason:

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-Butene is more stable than

2

Q. Elimination reaction of 2-bromobutane to form but-2-ene is:
(a)

β

-Elimination reaction
(b) Follows Hoffmann rule
(c) Dehydrohalogenation reaction
(d) Dehydration reaction

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Dehydrohalogenation for Alkenes

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