Đáp án D
A. Benzyl axetat: CH3COOCH2C6H5 + NaOH → CH3COONa + C6H5CH2OH.
B. Metyl axetat: CH3COOCH3 + NaOH → CH3COONa + CH3OH.
C. Metyl propionat: C2H5COOCH3 + NaOH → C2H5COONa + CH3OH.
D. Tristearin: (C17H35COO)3C3H5 + 3NaOH → 3C17H35COONa + C3H5(OH)3.