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Which of the following reactions does no...

Which of the following reactions does not take place?

A

`C_2H_5Br+KNO_2toC_2H_5-O-N=O+KBr`

B

C

`C_2H_5Br+AgCNtoC_2H_5NC+AgBr`

D

`C_2H_5Br+KCNtoC_2H_5NC+KBr`

Text Solution

Verified by Experts

The correct Answer is:
D
`C_2H_5Br+KCN to C_2H_5CN+KBr`
Due to ionic nature, the attack by `CN^(-)` occurs through C atom and alkyl cyanide is formed.
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NCERT FINGERTIPS-HALOALKANES AND HALOARENES-Chemical Reactions
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  2. Which of the following haloalkanes is most reactive?

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  3. Which of the following reactions does not take place?

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  4. Consider the following bromides: The correct order of S(N^1) reac...

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  5. Which of the following statement regarding S(N)1 reaction shown by alk...

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  6. Consider the following reaction: C6H5-underset(H)underset(|)overset(...

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  7. Which one of the following chlorohydrocarbons readily undergoes solvol...

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  8. Which of the following is the most reactive towards nucleophilic subst...

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  9. SN^1 reaction is fastest in

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  10. Which of the following alkyl halides is hydrolysed by S(N^(1)) mechani...

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  11. Which of the following will give enantiomeric pair on reaction with wa...

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  12. Which of the following is most reactive towards aqueous NaOH?

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  13. In the following pairs of halogen compounds, which compounds undergoes...

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  14. Which of the following haloalkanes reacts with aqueous KOH most easily...

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  15. Which alkyl halide exhibits complete racemisation in S(N^1) reaction?

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  16. The order of reactivity of various alkyl halides towards nucleophilic ...

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  17. Alkyl halides are formed when thionyl chloride and are refluxed in pr...

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  18. 2-Bromo-3,3- dimethylbutane on reaction with aqueous KOH yields X as t...

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  19. Among the isomers of C5H11Cl, the one which is chiral is (i) 2,2-Dim...

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  20. Ethylene dichloride and ethylidene chloride are isomeric compounds. Th...

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