Identify the reaction given below:
NaOH + D2O → NaOD + HDO.
Exchange reaction
Deuterolysis reaction
Hydrolysis reaction
Softening of hard water
NaOH + D2O → NaOD + HDO is known as Exchange reaction. H in NaOH is exchanged with D in DD2O.
Identify the type of reaction: HCl + NaOH → NaCl + H2O