describe an activity to show that an acid neutralises the property of a base .
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Explanation take some phenolphthalein solution and add drop by drop hcl to it till the pink colour of the solution disappears. but when we again add a few drops of phenolphthalein ti it the pink colour of the solution reappears .
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Our stomach contains hydrochloric acid. It helps us to digest food. But too much of acid in the stomach causes indigestion.Sometimes indigestion is painful. To relieve indigestion, we take an antacid such as milk of magnesia, which contains magnesium hydroxide. It neutralises the effect of excessive acid.
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