1.

Walls of stomach secrets acids to make the stomach acidic and for the digestion of food, when the acid is secreted in excess it leads to indigestion, heart burn, (or) gastric ulcers. The chemicals which are used to neutralize the excess acid present in the gastric juice and to raise the pH ofstomach upto an appropriate level are called antacids. Antacids does not contains

Answer»

NaOH
`Mg(OH)_2`
`AL(OH)_3`
`NaHCO_3`

Solution :NaOH is not an ANTACID


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