37Carboxylic Acids EstersMedium1 markThree equations are shown.1CH3COOH+MgCO3→CH3COOMg+CO2+H2O2CH3CH2COOH+Na→CH3CH2COONa+0.5H23CH3CH2COOH+2Ba(OH)2→CH3CH2COOBa2+2H2OWhich of the equations are correct?A1, 2 and 3B1 and 2 onlyC2 onlyD3 onlyGrade answerSolutionGrading criteria