Which of the following substances has the largest intermolecular spaces?

1. A piece of iron metal
2. A glass of water
3. A spoon of common salt
4. A balloon filled with hydrogen gas

The type of energy possessed by a moving body is called as:

1. Electrical energy
2. Light energy
3. Heat energy
4. Kinetic energy

Assertion (A): Matter exists in three states; i.e. solids, liquids and gases.

Reason (R): The intermolecular forces of attraction and intermolecular spaces are different in different kinds of matter.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): Liquid molecules can move freely and are able to occupy the whole space available to them.

Reason (R): The molecules of liquids have larger intermolecular spaces and weaker intermolecular forces of attraction than those in solids.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.