Question

please help me with this questions ​

Answer 1

Answer:

1:Grills of doors and windows are generally made up of iron metal. Before painting, iron metals are in direct contact with the moisture in atmosphere.Painting prevents corrosion as it prevents iron metal from coming in contact with moisture and oxygen from the atmosphere.

2:Ionic compounds have high melting points because there is a strong electrostatic force of attraction between the oppositely charged ions and hence a large amount of energy is required to break the strong bonding force between ions.

Answer 2

Answer:

1 Grills are always painted before use because of preventing it from the rust for long life of material

2 Ionic compounds have high melting point because of strong and close bonds