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Addition of X(2) on alkene is electrophi...

Addition of `X_(2)` on alkene is electrophilic additon reaction.Reaction proceed through the formation of 3- membered cyclic halonium ion. Nucleophile `X^(-)` attacks from backside of cyclic halonium ion hence total reaction is anti addition reaction.If this reaction proceed polar solvent then solvent itself acts as nucleophile.

Which of the following statements is incorrect?

A

Symmetrical trans alkene gives 2 products on reaction with `Br_(2)//CCI_(4)`

B

Symmetrical cis alkene gives 2 products on reaction with `Br_(2)//C Cl_(4)`

C

Trans alkenes give erythro product

D

Cis alkenes give threo product

Text Solution

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The correct Answer is:
A
Trans-alkane give meso product which is optically inactive
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HIMANSHU PANDEY-HYDROCARBONS (ALKANE, ALKENE and ALKYNE)-Linked Comprehension Type (Q.1 To Q.25)
  1. Conjugated diene reacts with unsaturated hydrocarbon in presence of he...

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  2. Conjugated diene reacts with unsaturated hydrocarbon in presence of he...

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  3. Addition of X(2) on alkene is electrophilic additon reaction.Reaction ...

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  4. Addition of X(2) on alkene is electrophilic additon reaction.Reaction ...

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  5. Addition of X(2) on alkene is electrophilic additon reaction.Reaction ...

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  6. Addition of HX on alkene proceed through the formation of carbocation ...

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  7. Addition of HX on alkene proceed through the formation of carbocation ...

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  8. Addition of HX on alkene proceed through the formation of carbocation ...

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  9. Alkene and alkyne both undergo electrophilic additon beacuise of pi e...

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  10. Alkene and alkyne both undergo electrophilic additon beacuise of pi e...

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  11. Alkene and alkyne both undergo electrophilic additon beacuise of pi e...

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  12. Find structure of compound A:

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  13. Find structure of compound E:

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  14. Find structure of compound D:

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  15. Which of the following is compund P?

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  16. R and s are:

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  17. Identify sturcture of compound T:

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  18. Hydroboration oxidation reaction is a process of addtition of H(2)O ac...

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  19. Hydroboration oxidation reaction is a process of addtition of H(2)O ac...

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  20. Hydroboration oxidation reaction is a process of addtition of H(2)O ac...

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