State true or false. If false, give the correct statement. Argon is mono atomic gas.

State true or false. If false, give the correct statement. Atoms cannot exist alone. They can only exist as groups called molecules.

State true or false. If false, give the correct statement. A ball of iron floats in mercury.

State true or false. If false, give the correct statement. Density of water is 100kg//m^3 .

True or False. If False, give the correct statement. Air is not compressible.

State true or false. If false, give the correct statement. One square matre is the area enclosed inside a square of side 2 metre.

State true or false. If false, give the correct statement. A subtance which contains less number of molecules per unit is said to be denser.

State true or false. If false, give the correct statement. Area is a derived quantity as we obtain by multiplying twice of the fundamental physial quantity length.

State true or false. If false, give the correct statement. Two different elements may have similar atoms.

State true or false. If false, give the correct statement. Water is denser than kerosene.

State true or false. If false, give the correct statement. The nearest star to our solar system is proxima centaurai.