Which one of the following statements is not correct about the three states of matter i.e. solid, liquid and gaseous (a) Molecules of a solid possess least energy whereas those of a gas possess highest energy (b) The density of solid is highest whereas that of gases is lowest (c) Gases like liquids possess definite volumes (d) Molecules of a solid possess vibratory motion
Explanation: The statement that the particles of some forms of matter move constantly is incorrect because the particles of matter of all three states– solid, liquid and gas –are moving constantly. In solids, the particles are fixed at their positions but they vibrate constantly.