Choose the appropriate word(s) from the bracket [first, alc. AgCN, primary, decrease, third…
Choose the appropriate word(s) from the bracket [first, alc. AgCN, primary, decrease, third, increase, zero, Lucas, alc. KCN, KOH, no change, two, Tollen’s, AgOH, tertiary]:
Methyl chloride on treatment with ____ forms methyl cyanide, whereas on treatment with ____ it forms methyl isocyanide.
Answer
Answer
AIWritten by AI (gemini) - it can contain mistakes.
Blanks: alc. KCN; alc. AgCN
alc. KCN; alc. AgCN. Alcoholic $\text{KCN}$ is predominantly ionic, allowing attack via carbon to form methyl cyanide (acetonitrile), while alcoholic $\text{AgCN}$ is predominantly covalent, directing nucleophilic attack through nitrogen to yield methyl isocyanide.
From ISC 2026 Chemistry Paper 1, question 1(A)(ii).