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Why do free radicals and carbenes act as...

Why do free radicals and carbenes act as electrophiles ?

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Because they do not possess complete octet and have a tendency to achieve octet by taking electrons.
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ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -SHORT ANSWER TYPE QUESTIONS
  1. What do you understand by hyperconjugation effect ? Illustrate with an...

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  2. Explain the Hyperconjugation effect is also termed as 'no bond reso...

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  3. Why is the hyperconjugation effect exerted by a methyl group greater t...

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  4. Define heterolytic fission of a covalent bond.

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  5. Why is a 3^@ radical more stable as compared to 1^@ and 2^@ free r...

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  6. What are carbocations ? Give two examples.

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  7. Discuss the orbital structure of a carbocation.

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  8. What is relative order of reactivity of various types of carbocations ...

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  9. Define carbanion and discuss its orbital structure.

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  10. Why is 1^@ carbanion more stable than a 2 carbanion ?

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  11. What are carbenes ?

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  12. What are electrophilic reagents ? Give at least three examples.

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  13. Why do free radicals and carbenes act as electrophiles ?

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  14. What do you understand by nucleophilic reagents and what type of speci...

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  15. Why does ether act as a nucleophile ?

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  16. What are nucleophilic substitution reactions ? Give an example.

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  17. What are the reactive species involved in S(N^1) reactions ?

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  18. Explain why does a S(N^2) reaction involve an inversion in configurati...

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  19. Give three examples of electrophilic substitution reactions.

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  20. Discuss the mechanism of anti-Markownikoff addition of HBr to an unsym...

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