Question

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Answer 1

Answer:

Explanation:

3 a A concentrated acid is an acid which is in either pure form or has a high concentration. Laboratory type sulfuric acid (about 98% by weight) is a concentrated (and strong) acid. A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself.

b A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself. For instance, 5% sulfuric acid is a dilute acid.

c An aqueous solution is one in which the solvent is liquid water. That is, solute (dissolved) ions and molecules are surrounded by water molecules and incorporated into the network of bonds within the water. The dissolved species then spread throughout the water.

4 The indicators that are obtained from plants are known as natural indicators.  Some examples of natural indicators are red cabbage, turmeric, grape juice, turnip skin, curry powder, cherries, beetroots, onion, tomato, etc.

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BY Tolety Roshan

Answer 2

Answer:

3)a.Concentrated acid - Those acids which are pure or have very high concentration in water are called as concentrated acids. For example concentrated Hydrochloric acid (HCl) and concentrated Sulphuric acid. are examples of concentrated acids.

b.Dilute acid - Those acids in which acidic concentration is lower in water is called as dilute acids. For example 3% Hydrochloric acid is an example of dilute acid.

c.Aqueous solution=An aqueous solution is one in which the solvent is liquid water. That is, solute (dissolved) ions and molecules are surrounded by water molecules and incorporated into the network of bonds within the water.

4.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.

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