Class 7 Chemistry Acids, Bases and Salts Neutralisation in everyday life

Neutralisation in everyday life

Indigestion

The stomach contains hydrochloric acid that helps to digest food. But presence of too much acid in the stomach may lead to indigestion that can be relieved by taking an antacid such as milk of magnesia containing magnesium hydroxide and effective in neutralising the effect of excessive acid.

Ant bite

Ant bites inject formic acid present in its sting, into our body. The effect of the formic acid injected into our body can be nullified by rubbing moist baking soda i.e. sodium hydrogen carbonate or calamine solution, containing zinc carbonate.

Soil treatment

Excessive use of chemical fertilisers results in increased acidity of the soil which is not at all suitable for proper plant growth. Plants cannot even grow well when the soil is too basic.

Too much acidity of soil is neutralised using bases like quick lime (calcium oxide) or slaked lime (calcium hydroxide). Whereas too much basicity of soil is neutralised by using Organic matter that releases acids and thereby neutralises the basic nature of the soil.

Factory wastes

The wastes excreted out of factories are highly acidic and causes threat to the survival of the marine ecosystem. Release of these acidic wastes into the water bodies, kills fish and other organisms. Due to which the factory wastes are properly neutralised by adding basic substances.

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