Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET Medical202622 April 2026Evening ShiftChemistryHaloalkanes and HaloarenesActual

Identify the A and B in the following reactions in alcoholic medium. RX + AgCN A + AgX RX + KCN B + KX

Options

  1. AA RNC ; B RNC
  2. BA RCN ; B RNC
  3. CA RNC ; B RCN
  4. DA RCN ; B RCN

Correct answer

C. A RNC ; B RCN

Step-by-step solution

KCN is predominantly ionic and provides cyanide ions in solution. The attack takes place mainly through the carbon atom since the C-C bond is more stable than the C-N bond. Thus, KCN gives alkyl cyanides (RCN) as the major product. AgCN is mainly covalent in nature and nitrogen is free to donate an electron pair forming an isocyanide as the main product. Thus, AgCN gives alkyl isocyanides (RNC) as the major product. Therefore, A is RNC and B is RCN. Answer: A RNC ; B RCN

Practice Haloalkanes and Haloarenes on Quantrex Academy →

More from Haloalkanes and Haloarenes

Which of the following reactions can convert chlorobenzene into toluene? 2026Identify best method for preparation of Alkyl fluoride from following 2026Identify the chemical name of the commonly used refrigerant Freon 12 2026Which of the following alkyl halides gives a mixture of alkenes on dehydrohalogenation? 2026Which order of kinetics is followed by the reaction between tert-butyl bromide and hydroxide ion to give tert-Butyl alcohol? 2026Above reaction is known as 2026Which of the following product obtained when alkyl chloride react with aq KOH at room temperature? 2026Chlorobenzene reacts with Mg in dry ether to give a compound A, which further reacts with ethanol to give B. Identify B. 2026 Full Haloalkanes and Haloarenes list All MHT CET Medical PYQs