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Karl Ziegler reported that alkenes react...

Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS) in presence of light to give products resulting from substitution of hydrogen by bromine at the allylic position i.e., the position next to the double bond.
Let us consider the halogenation of cyclohexane.

Energy level diagram for allylic vinylic and alkylic free redicals is given below:


(4,4-Dimethyl cyclohexene)
Above compound on treatment with NBS gives allylic bromides . How many product (s) will be obtained in this reaction?

A

One

B

Two

C

Three

D

Four

Text Solution

Verified by Experts

The correct Answer is:
C
Three products will be obtained whose structures as :
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OP TANDON-HALOALKANES AND HALOARENES -Linked comprehension type questions passage
  1. Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS)...

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  2. Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS)...

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  3. Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS)...

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  4. The removal of two atoms or groups one generally hydrogen (H^(+)) and ...

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  5. The removal of two atoms or groups one generally hydrogen (H^(+)) and ...

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  6. The removal of two atoms or groups one generally hydrogen (H^(+)) and ...

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  7. The removal of two atoms or groups one generally hydrogen (H^(+)) and ...

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  8. The removal of two atoms or groups one generally hydrogen (H^(+)) and ...

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  9. S(N^(1)) reaction is a first order nucleophilic substitution e.g. CH...

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  10. S(N^(1)) reaction is a first order nucleophilic substitution e.g. CH...

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  11. S(N^(1)) reaction is a first order nucleophilic substitution e.g. CH...

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  12. S(N^(1)) reaction is a first order nucleophilic substitution e.g. CH...

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  13. S(N^(1)) reaction is a first order nucleophilic substitution e.g. CH...

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  14. Free radical halogenation takes place in the presence of light or at h...

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  15. Free radical halogenation takes place in the presence of light or at h...

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  16. Free radical halogenation takes place in the presence of light or at h...

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  17. Free radical halogenation takes place in the presence of light or at h...

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  18. Free radical halogenation takes place in the presence of light or at h...

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  19. For a typical nucleophilic aromatic substitution reaction to take plac...

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  20. For a typical nucleophilic aromatic substitution reaction to take plac...

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