Chemistry

The process of heating a liquid into vapour and then retrieving the liquid from the vapour by cooling it is called distillation.

Camphor is a sublimated substance.

Acidity occurs in the stomach when excess hydrochloric acid is generated inside. Antacid contains aluminium hydrochloride and magnesium hydroxide. These two compounds neutralize hydrochloric acid.

There remains various organic acids like succinic acid malic acid etc. in a green mango which makes it sour. As it ripens, this acids transforms into glucose and fructose in chemical reactions and turns the mango sweet.

Chemistry is one of the branches of natural science that discusses the structure of matter, nature, and changes.Chemistry is the scientific study of matter and its properties, composition, and structure. It is a branch of physical science that deals with the investigation of the chemical and physical properties of substances and the transformation of one … Read more

The organisms that are only visible using electronic microscope are called microorganisms.

The orbital revolution of the electron is not expected to be stable. Any particle in a circular orbit would undergo acceleration. During acceleration, charged particles would radiate energy. Thus, the revolving electron would lose energy and finally fall into the nucleus. If this were so, the atom should be highly unstable and hence matter would … Read more

Ernest Rutherford was interested in knowing how the electrons are arranged within an atom. Rutherford designed an experiment for this. In this experiment, fast moving alpha (α)-particles were made to fall on a thin gold foil. But, the α-particle scattering experiment gave totally unexpected results. The following observations were made: In the words of Rutherford, “This result was … Read more