Give three practical applications of neutralisation reaction.

(N/A) $(i)$ Antacids are formulated based on the principle of neutralisation reaction to treat acidity.
$(ii)$ Toothpastes are basic in nature,which help in neutralising the excess acid produced in the mouth,thereby preventing tooth decay.
$(iii)$ Milkmen add a small amount of baking soda to milk to neutralise the lactic acid produced,which helps in preventing the milk from souring quickly.