Chemistry - Section 1 (2)

Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

The National Chemical Laboratory is situated in

The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in

The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is

The hottest part of the gas flame is known as