Chọn D
ClH3N-CH2-COONH4 + 2NaOH → NH2-CH2-COONa + NaCl + NH3 + H2O
CH3NH3HCO3 + 2NaOH → CH3NH2 + Na2CO3 + H2O
H2NCH2COOCH3 + NaOH → H2NCH2COONa + CH3OH
CH3NH3NO3 + NaOH → CH3NH2 + H2O + NaNO3
HOOC-[CH2]3-CH(NH3Cl)-COONa + 2NaOH → NaOOC-[CH2]3-CH(NH2)-COONa + NaCl + 2H2O
C6H5COOCH3 + NaOH → C6H5COONa + CH3OH
CH3COOC6H5 + 2NaOH → CH3COONa + C6H5ONa + H2O
Số chất: 4.