Question

All materials are made of:
[A] Salt
[B] Acid
[C] Molecules
[D] Solution

Answer 1

Hint: All the materials, substances, everything around us consist of a fundamental particle known as atoms. Atoms make up materials. We use a certain term to describe a group of atoms. You can use this to answer the question.

Complete step by step solution:
We know that all the materials are basically matter and consist of their respective atoms. For example a piece of iron is made up of iron atoms and a piece of copper is made up of copper atoms and we can think of many more such examples.
Now, let us discuss how the atoms make up a matter.
Earlier, the molecules were defined as the smallest particle of a material but later it was realised that the smallest possible particle is not a molecule, it’s an atom indeed a molecule is a group of atoms.
The group of atoms held together by chemical bonds is known as a molecule. Molecules lack electrical charge and thus are electrically neutral groups.
Molecules make up a matter. Molecules can be homo-nuclear as well as hetero-nuclear. Homo-nuclear molecules contain two or more atoms of the same element like oxygen ${{O}_{2}}$ sulphur ${{S}_{8}}$ etc. and a hetero-nuclear molecule contains atoms of two different elements. Like water, ${{H}_{2}}O$ contains atoms of hydrogen and oxygen.
We can understand from the above discussion that all materials are made up of atoms and a group of atoms is known as molecules.

Therefore, the correct answer is option [C] molecules.

Note: The molecules are held together by different types of chemical bonding. The bonding can either be covalent bonding or ionic bonding. Covalent bonding is formed by sharing of electrons between an electron rich and an electron deficient species whereas ionic bonding is formed by complete transfer of electrons. The bonding also affects the stability of molecules in different environments.