Question

3. Write down two properties of solids. Give three examples of solids.

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Answer 1

Answer:

solid are harder

solid have very small intermolecular space

examples are duster, pen table etc.

Answer 2

☆$\small\green {\sf{Answer }}$☆

• A solid is rigid and cannot be compressed easily.

Reason: Molecules are closely spaced and the intermolecular separation is very small which cannot be reduced further.

• A solid does not diffuse into another solid easily.

Reason: Intermolecular force of attraction is very strong.

• A solid does not flow and can be stored in a container.

Reason: Intermolecular fore of attraction is so strong that molecules do not flow and leave the surface of the solid.

• A solid on hating usually changes into its liquid state.

Reason: Heating provides sufficient energy to molecules to overcome the intermolecular force of attraction. Intermolecular separation increases, changing the solid into liquid.