Question

All molecules may not be compund but all compounds are molecules as well- explain with four examples​

Answer 1

Answer:

All compounds are molecules, but not all molecules are compounds. How would you prove that?

The first proposition in your statement is incorrect but the second one is correct.

All compounds do not exist as molecules. Only covalent compounds like water, ammonia, hydrogen sulphide, hydrogen chloride, sulphuric acid (pure), ethanol, glucose, acetic acid etc. exist as molecules. Ionic compounds like sodium chloride, calcium carbonate, copper sulphate, ammonium chloride etc. do not exist as discrete molecules; they always exist as a cluster of oppositely charged ions held together by strong electrostatic forces.

All molecules are not compounds because pure nonmetal elements also exist as molecules. A molecule is a group of atoms held together as a single unit by covalent bonding. When only one type of atoms unite to form a molecule, it is simply an element. Examples of such molecules are H2, O2, Cl2, P4, S8 etc. But when a molecule is composed of two or more different type of atoms, it is called a compound. Molecules like H2O, HCl, NH3, CO2, H2SO4 etc. are compounds as each one of these entities is composed of more than one type of atoms.

Answer 2

Answer:

Every combination of atom is a molecule. A compound is a molecule made of stones from different elements. All compounds are molecules,but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.