will mark ! the table below shows the volume of two samples, a and b, when placed in three containers of different volumes. volume of sample volume of container volume of sample a volume of sample b 500 cm3 500 cm3 180 cm3 380 cm3 380 cm3 180 cm3 220 cm3 220 cm3 180 cm3 which of the following correctly describes the state of matter of one of the samples? a is a solid because its volume is equal to the volume of the containers. b is a gas because its volume is less than the volume of the containers. b is a solid because it contracts as the containers change. a is a gas because it contracts as the containers change.

Option (d) is the correct answer.

Explanation:

It is known that in solids, atoms are held closer to each other due to strong intermolecular forces of attraction between them. Due to this reason solids have fixed shape and volume.

In liquids, atoms are less tightly held due to which the atoms can easily slide past each other. Therefore, liquids occupy the space and shape of container in which they are kept.

Whereas in gases, molecules are held by weak Vander waal forces due to which they move freely and hence, occupy the volume of container in which they are kept.

Therefore, every time on changing the volume of container given sample A occupies the volume of container.

Hence, we can conclude that sample A is a gas because it contracts as the containers change.

it is stable as it is in group 0 which have full outer shells of electrons