Question

Mention the pH range within which our body works. Explain how antacids
give relief from acidity. Write the name of one such antacid.??​

Answer 1

Answer:

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Explanation:

Our stomach has pH equal to 2. Antacids neutralizes excess of acid in our body and gives relief from hyperacidity. Sodium hydrogencarbonate is one of such antacid.

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Answer 2

(a)During indigestion, stomach produces too much acid which causes pain. Antacids are alkaline and so neutralize the excess acid. 1 Milk of Magnesia is an antacid.

(b) The pH will decrease. The milk when changes to curd becomes more acidic. Lesser the pH value, more is the acidic nature.

(c) So that milk does not get spoilt / sour / change into curd.

(d) Because enzymes which can change milk to curd does not work in alkaline pH.

(e) Tooth pastes are alkaline in nature. They neutralize the excess acid produced by bacteria in mouth.