Identify the correct set of reagents or reaction conditions ‘X’ and ‘Y’ in the following set of transformation.
1
X = conc.alc. NaOH, 80°C, Y = Br2/CHCl3
2
X = dil.aq. NaOH, 20°C, Y = HBr/acetic acid
3
X = conc.alc. NaOH, 80°C, Y = HBr/acetic acid
4
X = dil.aq. NaOH, 20°C, Y = Br2/CHCl3