Question

solution of activity
3.13 class 10 of chap 3
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Answer 1

Answer:

The answer in brief is given as follows :

Explanation:

Aim :

Activity wants us to find the various properties of various salts like physical nature, melting point, solubility, conduction of electricity.

Observation :

Salts of acids and bases are Hard; brittle; have a high melting point; soluble in water; insoluble in non-polar solvents like kerosene, benzene; conducts electricity.

Explanation of the Experiment :

Molecules of salt are closed together by the strong Ionic bond between anions and cations. This strong attraction gives a salt hard appearance, high melting and boiling point.

In water and other polar solvents, they form strong ionic bonds, so they are soluble in water. Non-polar solvents like organic solvents and kerosene do have polar bonds. A salt molecule, therefore, does not mix with such solvents. As a result, it sinks to the bottom.

In solution form molecules of salts are in ionic form. They move freely in the solution; therefore they conduct electricity.

Hope this helps U !