A calorie is a unit of heat. The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise... View Article
We all know that microorganisms are present everywhere. Let us read more about them. Microorganisms are minute organisms that are invisible to... View Article
Progesterone is the name of the hormone secreted by the corpus luteum. The corpus luteum is a yellowish mass left after the ovulation of the... View Article
An even number is a number that can be divided into two equal groups. An odd number is a number that cannot be divided into two equal groups.... View Article
Disaccharides are the carbohydrates that on hydrolysis gives two same or different carbohydrates. Their general formula is C12H22O11. A... View Article
Stainless steel is an alloy of iron, chromium and nickel, and therefore it is rust-resistant. Corrosion is the process of decay on a material... View Article
When the temperature of a solution is increased, the average kinetic energy of the molecules that make up the solution also increases. This... View Article
Ozone is known as ozonised oxygen. Ozone (O3) is a highly reactive gas composed of three oxygen atoms. It is both a natural and a human-made... View Article
In a physical change, no new substance is formed. Hence, the tearing of paper is a physical change. Properties such as shape, size, colour and... View Article
Micro-organisms are too small to be seen through naked eyes. However, they are vital to plants and the environment. Given below are the few uses... View Article
Homologous structures share a similar embryonic origin. Analogous organs have a similar function. Homologous organs are those organs that have... View Article
The apoenzyme is the protein part of a conjugated enzyme, and the coenzyme is the non-protein part. The combination of the apoenzyme and the... View Article
In human beings, the blood goes through the heart twice during each cycle, i.e. the blood passes through the human heart two times to supply... View Article
The valence electronic configuration of alkali metals is ns1. They can attain the noble gas electronic configuration by removing one electron,... View Article
e-Ea/RT represents the fraction of molecules with energies equal to or greater than Ea. In chemical kinetics, the pre-exponential factor or A... View Article
The electronic configuration of chromium in [Cr(NH3)6]3+ is [Ar]3d54s1. Chromium is a chemical element with the symbol Cr and atomic number... View Article
LiCl and MgCl2 both are soluble in ethanol. Alcohol forms hydrogen bonding, and it also has a covalent character, so it is a polar solvent. Due... View Article
Conductivity becomes equal to molar conductivity when 1 cm3 of the solution placed between two large electrodes of 1 cm2 area of cross-section... View Article
