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Dehydrohalogenation of alkyl halides to ...

Dehydrohalogenation of alkyl halides to form alkenes is promoted (or catalyzed) by

A

a base

B

an acid

C

both and acid as well as a base

D

neither an acid nor a base

Text Solution

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The correct Answer is:
A
Heating the alkyl halide with a strong base causes the reaction to take place:
`(CH_(3))_(3)CBrunderset(C_(2)H_(5)OH,55^(@)C)overset(C_(2)H_(5)OK)rarr(CH_(3))_(2)C=CH_(2)+KBr+C_(2)H_(5)OH`
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R SHARMA-ALKENES-Question Bank
  1. Which of the following is known as Baeyer's reagent used for the test ...

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  2. The total number of alkenes (constitutional and configurational) possi...

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  3. Dehydrohalogenation of alkyl halides to form alkenes is promoted (or c...

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  4. 1-Bromobutane is treated with sodium ethoxide in ethanol. The major pr...

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  5. Which of the following alkyl halides will not undergo dehydrohalogenat...

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  6. Which of the following has zero dipole moment?

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  7. Which of the following compounds is the most reactive towards electrop...

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  8. Hydroboration reactions are usually carried out in ethers. The reagent...

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  9. Which of the following methods is useful in preparing 1^(@) alcohols f...

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  10. C(3)H(7)CH=CH(2)underset(THF//H(2)O)overset(Hg(OAc)(2))rarrAunderset(N...

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  11. Propene reacts with HOCl to give

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  12. An alkene on ozonolysis produces butanone only. The alkene is

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  13. Which of the following gives on ozonolysis both aldehydes and ketones?

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  14. In the following sequence of reactions, the alkene affords the compoun...

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  15. CH(3)CH(2)CH=CH(2)overset(Catalyst)rarrCH(3)CH=CHCH(3) The catalyst ...

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  16. The total number of alkenes possible having the molecular formula C(5)...

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  17. Which of the following alkyl halides undergoes the fastest base-induce...

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  18. The major product from the reaction of 3-bromo-2,3-dimethylpentane wit...

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  19. In the dehydration of (CH(3))(3)CHOHCH(3), the major product is

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  20. 1,3-Dibromopropane is allowed to react with magnesium ( in excess) in ...

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