Identify A, B, C and rewrite the chemical reactions :H3C–CH2Cl + KOH(aq) —(Δ)→ ‘A’ —(hot Cu powder)→ ‘B’ —(K2Cr2O7, dil H2SO4)→ ‘C’

Q.24 Identify A, B, C and rewrite the chemical reactions :

H₃C–CH₂Cl + KOH_(aq) —(Δ)→ ‘A’ —(hot Cu powder)→ ‘B’ —(K₂Cr₂O₇, dil H₂SO₄)→ ‘C’

Doubtly Asked 29 Oct 2026 Board exam · July 2024 hsc 12th Save WhatsApp Report

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Answer: A = ethanol, B = ethanal (acetaldehyde), C = ethanoic acid (acetic acid)

CH₃CH₂Cl + KOH_(aq) —(Δ)→ CH₃CH₂OH (A, ethanol) + KCl

CH₃CH₂OH —(hot Cu, 573 K)→ CH₃CHO (B, ethanal) + H₂ (dehydrogenation)

CH₃CHO + [O] —(K₂Cr₂O₇, dil H₂SO₄)→ CH₃COOH (C, ethanoic acid)

Doubtly AI · 29 Oct 2026 AI-verified · Nov 2026 Report

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