Question

Which of the following is not a property of solid?
(A) Definite shape
(B) Rigidity
(C) Definite volume
(D) None of the above

Answer 1

There are three states of matter: they are solid, liquid and gas. All states of matter have their own characteristics and properties. The property exhibited by solids is known as property of solid.

Complete step by step solution:
Solid-state is one of three states of matter. Solid-state has its own properties and characteristics.
Option A is definite in shape. Solid has a definite shape as the constituent particles in a solid are held together tightly by an intermolecular force of attraction and the constituent particles cannot move from its mean position due to its low kinetic energy so solids form lattice and number of lattice held together forming a three-dimensional structure called a unit cell. Thus solid has a definite shape, so definite shape is a property of solid.
Option B is Rigidity. The constituent particles of a solid don't move from their mean position as that in case of liquid or gas. It can only vibrate at its mean position as it is held together by a strong intermolecular force of attraction in comparison to force of attraction existing between constituent particles in liquid or gas. Thus rigidity is a property of solid.
Option C is a definite volume. Solid has definite volume as the constituent particles have a strong intermolecular attraction between them so it cannot move from their mean position and it can just vibrate from its mean position. The constituent molecules in liquid and gas can move freely and experience collision between these molecules. Thus the definite volume is a property of solid.
Option D is none of the above. From the discussion on other options, we conclude that definite state, rigidity and definite volume are the properties of solid. This option is the absolute answer for this question as to the options A, B, C are properties of solid.

Hence option D is the correct answer.

Note: The intermolecular bond between constituent particles in solid can be a covalent bond or ionic bond depending upon the type and nature of the molecules. The constituent particles are so close to each that it cannot move from its mean position.