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KCET2022ChemistryHaloalkanes and Haloarenes

Identify the products A and B in the reactions : aligned & R-X+ AgCN A+ Ag X & R-X+ KCN B+ KX aligned

Options

  1. AA=R C ~N ; B=R NC
  2. BA=R NC ; B=R C N
  3. CA=R NC ; B=R NC
  4. DA=R- CN : B=R CN

Correct answer

B. A=R NC ; B=R C N

Step-by-step solution

R-X+ AgCN R NC + Ag X R-X+ KCN R CN + KX KCN is predominantly ionic in nature, its C - . . bond is more stable than C - N bond. T^ :. refore, in this case attack takes place through carbon atom. On other hand, AgCN is predominantly covalent in nature, hence only nitrogen is available for bonding result in formation of R NC .

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