Question

TOPIC-effects of natural indicators on a ids and bases.
plz don't copy r ask me to Google it...it is not available...i need a introduction to the topic given above...​

Answer 1

(1) Acids turn blue litmus to red. (2) Bases turn red litmus to blue. (a) If a drop of the given solution turns blue litmus paper to red, then the given solution will be acidic in nature (or it will be an acid). For example: a drop of lemon juice turns blue litmus paper to red, so lemon juice is acidic in nature.

Answer 2

We know about Acids and Bases . But how do we determine whether a substance is acidic or basic? We have Natural Indicators around us. You probably have a natural indicator in your home right now. Let us find out more about the natural indicators around us.

What are Natural Indicators?

• Natural Indicator is a type of indicator that can be found naturally and can determine whether the substance is an acidic substance or a basic substance. Some examples of natural indicators are red cabbage, turmeric, grape juice, turnip skin, curry powder, cherries, beetroots, onion, tomato, etc.

• Some flowers like hydrangeas can determine the acidity or basicity of the soil. These flowers become blue if the soil is acidic, purple if the soil is neutral and pink if the soil is basic. The intensity of the color depends on the amount of acid or base present in the soil. Soil which is highly acidic bears deep blue flowers, whereas soil which is highly basic yields deep pink flowers.

• These natural indicators are used to detect the hydrogen ions (H+) and hydroxyl ions (OH-) in a solution. Olfactory indicators can change their odor. Some examples of olfactory indicators are onion, vanilla extract, clove oil, etc.

• It is important to determine the nature of a substance because it is essential in biology, chemistry, civil engineering, water purification, agriculture, forestry, food science, environmental science, water treatment, oceanography, medicine, nutrition, agronomy, etc.

• Even litmus is extracted from lichens. It is a water-soluble mixture of different dyes. It is then absorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity or basicity.

Hope this helps you ✌️✌️☘️☘️