Metals and Non-Metals

Metals and Non-Metals

Multiple Choice

Ionic Bond is formed by

• Sharing of electrons

• Complete transfer of electrons

• Partial transfer of electrons

• Donating electrons

Multiple Select

The reason for Bonding in Ionic Bond is

• Sharing of Electrons

• Attractive interactions

• Repulsive Interactions

• None of the above

Properties of Ionic Compounds

Physical nature: 

• Ionic compounds are solids and are somewhat 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.

Multiple Select

Ionic compounds are solids and somewhat hard, because

• Presence of Cations and Anions

• Transfer of electrons

• Strong force of attraction

• None of the above

Melting and Boiling points: 

• Ionic compounds have high melting and boiling points 

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

Open Ended

Ionic compounds possess high melting and Boiling point. What is the reason?

Solubility

• Electrovalent compounds are generally soluble in water

• Insoluble in solvents such as kerosene, petrol, etc.

Multiple Select

True or False:

Solution of ionic Compounds conduct electricity

• True

• False

Conduction of Electricity

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

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

Poll

Is it possible to conduct electricity in solid-state?

• Yes

• No

Open Ended

Why?

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

• Ionic compounds conduct

  electricity in the molten state.

• 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.