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The following reaction CH(3)-underset(...

The following reaction
`CH_(3)-underset(CH_(3))underset(|)overset(H)overset(|)(C)-underset(X)underset(|)overset(CH_(3))overset(|)(C)-CH_(3)underset(underset(-H_(2)O, -KX)(KOH))overset("Alcoholic")rarr CH_(3)-underset(CH_(3))underset(|)(C)=overset(CH_(3))overset(|)(C)-CH_(3)`
is an example of

A

`alpha`- elmination

B

`beta`- elimination

C

Hofmann elimination

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
It involves removal of hydrogen atom from a carbon adjacent `(beta)` to the one bearing the halogen `(alpha)` So, it is a `beta`- elimination reaction in which more substituted (more stable) product is formed. Hofmann elimination gives the less substituted alkene.
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The following reaction CH_(3)-underset(CH_(3))underset(|)overset(H)overset(|)(C)-underset(X)underset(|)overset(CH_(3))overset(|)(C)-CH_(3)underset(-2O,-KBr)overset(Alc.kOH)(to) CH_(3)-underset(CH_(3))(|)(C)=overset(CH_(3))overset(|)(C)-CH_(3) is an example of

CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH_(2)-underset(O)underset(||)(C)-NHCH_(3)

The conversation : CH_(3)-underset(OH)underset(|)overset(CH_(3))overset(|)(C)-underset(OH)underset(|)overset(CH_(3))overset(|)(C)-CH_(3)underset(H_(2)SO_(4))overset("dil")rarrCH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-underset(O)underset(||)(C)-CH_(3) is called :

The IUPAC name of CH_(3)Ch_(2)-underset(CH_(3))underset(|)overset(H)overset(|)(C)-underset(CH_(3))underset(|)overset(C_(4)H_(9))overset(|)(C)-CH_(3) is

CH_(3)underset(Br)underset(|)CH-overset(CH_(3))overset(|)underset(OH)underset(|)(C)-C-O-CH_(3)

CH_(3)-underset(CH_(3))underset(|)(C)=CH-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(3)

write a IUPAC name H_(3)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-OH

CH_(3)-underset(CH_(3))underset(|)(CH)-CH=CH-CH_(2)-overset(O)overset(||)(C)-OH

CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH=CH-CH_(3)overset(H-Cl)(to) ?

ERRORLESS-GENERAL ORGANIC CHEMISTRY -NCERT BASED QUESTIONS (Organic Reactions and their Mechanism )
  1. The elimination reaction {:(CH(3)-CH(2).CH-CH(3)),(" ...

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  2. Which of the following is not true for S(N^(1)) reaction ?

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  3. The following reaction CH(3)-underset(CH(3))underset(|)overset(H)ove...

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  4. Which of the following statement is incorrect for biomolecular nucleop...

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  5. S(N)1 reaction is faster in

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  6. To which of the following four types does this reaction belong ?

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  7. The above reaction proceeds through

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  8. H(3)C- overset(CH(3))overset(|)underset(CH(3)) underset(|)( C) - Br + ...

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  9. The most common type of reaction in aromatic compounds is

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  10. Addition of HCl to vinyl chloride gives 1, 1-dichloroethane because of

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  11. The following compound will undergo electrophilic substitution more re...

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  12. Which of the following cannot undergo nucleophilic substitution under ...

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  13. Which of the following shows S(N^(1)) reaction most readily ?

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  14. Which gives nucleophilic addition reactions ?

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  15. Which one of the following species will be most reactive in S(N^(2)) r...

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  16. Arrange the following compounds in order of their decreasing reactivit...

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  17. Which of the following are correct chain isomers of butane ? (i) <im...

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  18. Which of the following undergoes nucleophilic substitution exclusively...

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  19. Hunsdiecker reaction involve free radical in intermediate steps.

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  20. Which give only monosubstituted product?

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