A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7. For example when HCl (Hydrochloric acid), a strong acid, reacts with NaOH, a strong base, the resulting salt is sodium chloride and water.
Answer : Baking soda (NaHCO 3 ) liberates carbon dioxide gas on heating, confirmed by passing it in lime water. Whereas on heating washing soda Na 2 CO 3 .10H 2 O water of crystallisation is given out, the salt becomes anhydrous. Reaction: 2NaHCO 3 → Na 2 CO 3 + H 2 O + CO 2 Na 2 CO 3 .10H 2 O → Na 2 CO 3 + 10 H 2 O