(a) What do you think will be the pH in the stomach of a person suffering from indigestion : less than 7 or more than 7 ?

(b) What do you think will be the pH of an antacid solution : less than 7 or more than 7 ?

(c) How does an antacid work ?

(d) Name two common antacids.

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1 Answers

(a) The pH in the stomach of a person suffering from indigestion will be l ess than 7 since indigestion is caused due to formation of excess acid in the stomach.

(b) Antacids are a group of mild bases so they have pH more than 7.

(c) Antacids react with excess acid in the stomach and neutralise it.

(d) Antacids: Magnesium hydroxide and Sodium hydrogencarbonate.

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