Question

Which of the following is/are true in case of molecules?

• A. They are capable of independent existence .
• B. They have same properties as that of the substance.
• C. The molecules of a compound have definite proportions of atoms.
• D. All the given options are correct.

Answer 1

The correct option is D

All the given options are correct.

Molecules are capable of independent existence and have same properties as that of the substance as the molecule is the fundamental material which defines the properties of a substance.

The molecules of a compound have definite proportions of atoms.

Consider an example:

$H_{2}O$ molecule can exist independently, has same properties of water and it always has 2 Hydrogen and 1 Oxygen atom.