(a) CH3COONa + NaOH → CH4 + Na2CO3

(b) CH3COOH + C2H5OH → CH3COOC2H5 +H2O

(c) 2CH3COOH + 2Na → 2CH3COONa + H2

(d) CH3COOC2H5 + NaOH → CH3 COONa + C2H5OH

Answer:  (d) CH3COOC2H5 + NaOH → CH3 COONa + C2 H5OH

Reason: The process of combining organic acid (RCOOH) with alcohol (ROH) to form an ester (RCOOR) and water is not the conversion of an acid into an ester by the combination of alcohol and the removal of a water molecule.