JEE Mains Chemistry Past PapershardMCQ SINGLE

Identify the correct set of reagents or reaction conditions ‘X’ and ‘Y’ in the following set of tranJEE Mains Chemistry Past Papers Chemistry Question

Question

Identify the correct set of reagents or reaction conditions ‘X’ and ‘Y’ in the following set of transformation. CH3 – CH2 – CH2 – Br Product ‘X’ ‘Y’ CH3 – CH – CH3 Br (A) X = conc.alc. NaOH, 80°C, Y = Br2/CHCl3 (B) X = dil.aq. NaOH, 20°C, Y = HBr/acetic acid (C) X = conc.alc. NaOH, 80°C, Y = HBr/acetic acid (D) X = dil.aq. NaOH, 20°C, Y = Br2/CHCl3

Answer: C

💡 Solution & Explanation

CH3–CH2–CH2–Br o X conc.alc.NaOH 80 C   CH3–CH=CH2 Y HBr/Aceticacid  CH3–CHBr – CH3

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