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Which of the following is the correct or...

Which of the following is the correct order of decreasing `S_(N^(2))` reactivity ?

A

`R_(2)CHXgtR_(3)CXgtRCH_(2)X`

B

`RCH_(2)XgtR_(3)CXgtR_(2)CHX`

C

`RCH_(2)XgtR_(2)CHXgtR_(3)CX`

D

`R_(3)CXgtR_(2)CHXgtRCH_(2)X("X is a halogen")`

Text Solution

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The correct Answer is:
C
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OP TANDON-BASIC PRINCIPLES OF ORGANIC COMPOUNDS (MECHANISM OF ORGANIC REACTIONS)-OBJECTIVE QUESTIONS (Level-A)
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  2. Which of the following intermediates have the complete octet around th...

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  3. Which of the following is the correct order of decreasing S(N^(2)) rea...

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  4. Which of the following presents the correct order of the acidity in th...

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  5. For the following (i) I^(-) (ii) Cl^(-) (iii) Br^(-) the increasin...

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  6. Which one of the following is correct? Formic acid has lower pK(a) t...

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  7. The rate of the reaction is influenced by the hyperconjugation ef...

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  8. The S(N^(1)) reactivity of the following halides will be in the order:...

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  9. The correct order of case of dehydration of following is:

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  10. The effect that makes 2,3-dimethyl-2-butene more stable than 2-butene ...

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  11. Condiser the reactions, (i) (CH(3))(2)CH-CH(2)Broverset(C(2)H(5)OH)r...

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  12. Which of the following is the most stable compound?

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  13. Hyperconjugation involves overlap of which of the following orbitals?

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  14. Mesomeric effect invloves the :

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  15. Which one of the following is most reactive towards electrophilic atta...

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  16. Which among the following statements are true with respect to electron...

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  17. The hydrolysis of 2-bromo-3-methylbutane by S(N^(1)) mechanism gives m...

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

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  19. Which one of the following carbanions is the least stable?

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  20. CH(3)CH(2)Cl undergoes homolytic fission produces:

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