Question

formation and properties of ionic compound​

Answer 1

Answer:

ionic compounds have high boiling and melting point as they are very strong they require a lot of energy to break the electrostatical energy forces attraction between oppositely charged ion's lead to the formation of ion's

these compounds are brittle and breaks down very easily

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Answer 2

Answer:

Ionic compounds are formed by exchange of electrons..

Example :-

(refer to attachment)

Properties :----

i.) Physical nature :-

They are solid and hard.

Because of the strong force of attraction between the positive and negative ions.

These compounds are generally brittle and break into pieces when pressure is applied.

ii.) Melting and boiling point :-

They have high melting and boiling points.

This is because a considerable amount of energy is required to break the strong inter-ionic attraction.

iii.) Solubility :-

Electrovalent compounds are generally soluble in water and insoluble in solvents such as kerosene , petrol , etc.

iv.) Conduction of electricity :-

The conduction of electricity through a solution involves the movement of charged particles.

A solution of an ionic compounds in water contains ions which move to opposite electrodes when electricity is passed through the solution.

Ionic compounds in solid state do not conduct electricity because movement of ions in solid state is not possible due to their rigid structure.

This is possible in the molten state since the electrostatic forces of attraction between the oppositely charged ions are overcome due to the heat. Thus , the ions move freely and conduct electricity.