STANDARDChemistry-Haloalkanes and Haloarenes
STANDARD Chemistry Nucleophilic Substitution Reactions MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which of the following reactions does not take place?
A
C₂H₅Br + KNO₂ → C₂H₅−O−N=O + KBr
B
C₂H₅Br + AgNO₂ → C₂H₅−N≡O + AgBr
C
C₂H₅Br + AgCN → C₂H₅NC + AgBr
D
C₂H₅Br + KCN → C₂H₅NC + KBr
Correct Answer
Option D
Detailed Explanation
C₂H₅Br + KCN → C₂H₅CN + KBr. Due to ionic nature, the attack by CN⁻ occurs through C atom and alkyl cyanide is formed.
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