The spectroscopic data for an organic compound with molecular formula $\mathrm{C}_{10} \mathrm{H}_{12} \mathrm{O}_{2}$ are given below. IR band around $1750 \mathrm{cm}^{-1} .{ }^{1} \mathrm{H}$ NMR $\delta 7.3(\mathrm{m}, 5 \mathrm{H}), 5.85(\mathrm{q}, 1 \mathrm{H}, \mathrm{J}=7.2 \mathrm{Hz}), 2.05(\mathrm{s}, 3 \mathrm{H}), 1.5(\mathrm{d}, 3 \mathrm{H}, \mathrm{J}=7.2 \mathrm{Hz}) \mathrm{ppm}$. the compound is
(a)methyl 2-phenylpropionate
(c)2 - (phenylethyl) acetate
(d)methyl 3-phenylpropionate
(b)1 - (phenylethyl) acetate
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
1750 cm⁻¹ ester, PhCH(CH₃)O– quartet at 5.85 and doublet 1.5, acetyl singlet 2.05 — 1-phenylethyl acetate (b).