Question

Q1) A piece of chalk can be broken into small particles on hammering, but it is not possible to do so in
case of a piece or a bar of iron. Explain.

Q2) Which state of matter is rigid and why?

Answer 1

Hey friend,

Q1) This is because the particles of iron has a greater force of attraction ie they attract each other more than the particles of chalk do.

Q2) Solid particles are more rigid because of their great force of attraction. Also they have less air spaces between them.

Thank you!

Answer 2

iron is rigid because the inter molecular force of attraction is higher than chalk

hope it helps:)