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The electrophile, E^((o+)) attacks the b...

The electrophile, `E^((o+))` attacks the benzene ring to generate the intermediate `sigma`-complex. Of the following which `sigma`-complex is of lowest energy?

A

B

C

D

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The correct Answer is:
A
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RESONANCE-ORGANIC REACTION MECHANISMS - II-Exercise-3 Part-2
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  2. Presence of a nitro group in a benzene ring:

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  3. The electrophile, E^((o+)) attacks the benzene ring to generate the in...

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  4. How many chiral compounds are possible on monochlorination of 2-methyl...

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  5. Which branched chain isomer of the hydrocarbon with molecular mass 72m...

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  6. The reaction of propene with HOCI (CI(2)+H(2)O) proceeds through the i...

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  7. 3-menthyl-pent-2-ene on reaction with HBr in presence of peroxide form...

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  8. In the hydroboration-oxidation reaction of propene with dibroane, H2O2...

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  9. Chlorobenzene reacts with trichloroacetaldehyde in the presence of H2S...

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  10. on mercuration-demercuration produces the major product .

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  11. In the presence of peroxide , HCl and HI do not give anti-Markownikoff...

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  12. The major product obtained in the photo catalyzed bromination of 2-met...

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  13. What is the major product expected from the following reaction ? ...

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  14. Bromination of cyclohexene under conditions given below yields :

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  15. Consider the reaction sequence below :

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  16. Which of the following compounds will not undergo Friedel Craft's reac...

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  17. The major product of the following reaction is

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  18. The increasing order of nitration of the following compound is :

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  19. The total number of optically active compunds formed in the following ...

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  20. The major product of the following reaction is

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