Answer:
(1)
(a)
Antacid tablets generally consist of magnesium hydroxide and aluminium
hydroxide which are mild bases.
They react chemically with the hydrochloric acid produced in stomach and
neutralise its effect. (1)
(b) The tooth pastes contain some basic ingredients and
they help in neutralising the effect of the acid and also in increasing the pH
of the mouth. These pastes help in checking corrosion of enamel and decay of
teeth. (1)
(c) Dry HCl gas on coming in contact with dry blue litmus
paper does not produce H+ ions and hence the colour of the litmus
paper does not change. (1)
You need to login to perform this action.
You will be redirected in
3 sec
