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Which of the following is the correct or...

Which of the following is the correct order of decreasing `S_N2`2 reactivity' ? (X=a halogen) 

A

`RCH_2X gt R_2CHX gt R_3CX`

B

`R_3CH gt R_2CHX gt RCH_2X`

C

`R_2CHX gt R_3CX gt RCH_2X`

D

`RCH_2X gt R_3CX gt R_2CHX`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-ALKYL AND ARYL HALIDES-OBJECTIVE EXERCISE - 2 A (MECHANISM OF NUCLEOPHILLIC SUBSTITUTION REACTIONS)
  1. Among the following which one has weakest carbon-halogen bond ?

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  2. The order of reactivities of the following alkyl halides for a SN2 rea...

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  3. Which of the following is the correct order of decreasing SN22 reactiv...

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  4. The ratio of relative rates of isopropyl bromide and ethyl bromide in ...

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  5. Teritiary alkyl halides are practically inert to substitution by SN2 m...

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  6. Arrange the following CH3CH2CH2Cl(I), CH3CH2-CHCl - CH3 (II), (CH3)2...

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  7. Which of the following will be the least reactive towards nucleophilic...

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  8. Characteristic reactions of alkyl halides are

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  9. Which of the following alkyl halides is hydrolysed by SN^1 mechanism ?

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  10. Consider the following bromides The correct order of SN1 reactivity...

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  11. Which of the following is the correct order of decreasing reactivity t...

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  12. SN2 reactions are

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  13. Which of the following halides would undergo nucleophilic substitution...

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  14. Incorrect statement about nucleophilic substitution reaction is

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  15. In reactions the incorrect order of reactivity of nucleophies is

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  16. Incorrect statement about nucleophilic substituition reacitons is

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  17. In the reaction with CH3I, the most reactive nucleophile among the fol...

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  18. Which of the following compounds would be hydrolysed most easily (SN1)...

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  19. Which of the following is least reactive towards nucleophilic displace...

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  20. An unknown alkyl halide (A) reacts with alcoholic KOH to produce a hyd...

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