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General Knowledge for Competitive Exams

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Environmental Chemistry

Environmental chemistry is defined as the study of the sources, reactions, transport, effects, and fates of chemicals in the environment, and the effect of human and biological activities on these.

Soaps and Detergents:Chemistry of Surfactants

Mar 22, 2016
Soaps and Detergents are chemical compound or mixture of compounds used as a cleansing agent. Soap is a sodium salt or potassium salt of many combinations of fatty acids having cleansing action in water whereas Detergent surfactants are much better solutions for the cleaning purpose as the hardness of water does not affect them.

Atomic Structure

Mar 22, 2016
Atoms are the smallest particle of an element that can exist, and can be regarded as the building blocks of everything. Atoms can combine to form molecules. Molecules are the smallest particle of either an element or a compound that can exist independently.

Metals: Properties and reactivity series

Mar 22, 2016
There are 118 elements known at present. There are similarities as well as differences are the properties of these elements on the basis of their, all the element can be divided three types: Metal; non- Metal; metalloid Metals are those elements which losses electrons and provides cation. In the periodic table, these elements are located and confined towards left and middle. Also the elements which are located extremely left have most metallic properties.

What is the difference between Alpha, Beta and Gamma Rays?

Dec 29, 2020
During radioactivity three main types of radiations are emitted by radioactive particles namely alpha, beta, and gamma. Let us study these rays and what is the difference between them.

Interesting facts about Cyanide

Mar 14, 2020
Cyanide is a chemical that can be present in different forms. This is known as the most dangerous poison. Let us study through this article about cyanide poisoning, its impact, symptoms, are all cyanides dangerous or fatal, etc.

What is Gene Editing, CRISPR/Cas9, Examples and Benefits?

Oct 16, 2020
Genome editing is also known as gene editing. Various approaches to genome editing have been developed. How is it done, what are its applications, benefits, examples, etc? Let us find out!

What is the chemical composition of Sweat?

Oct 16, 2020
Sweat is the natural phenomenon of our body. It maintains the temperature of the body. It is also known as perspiration. Let us study the chemical composition of sweat through this article.

Why do particles of matter constantly move?

Oct 16, 2020
Matter is that occupies space and has weight. Everything around us is made up of particles. The particles which make up matter are so small that we cannot see them with a high power microscope. One of the characteristic of particle is that it constantly moves. Let us prove it through this article.

Why Gold does not rust?

Mar 19, 2020
We know that gold has been used in India since ancient times. Its accuracy is measured in the carat. People use it in the form of jewellery, coins, etc. You may have noticed that gold does not rust like other metals but why? Let us find out!

What is the difference between Baking Soda and Baking Powder?

Dec 18, 2020
Baking soda and baking powder both are leavening agents and are used to help baked goods rise. Let us have a look at the difference between baking soda and baking powder.

Science and Tech Weekly Brief: Important updates from December 12- 18, 2020

Dec 18, 2020
Take a look at the detailed list of major events in Science and Technology that have occurred in the past one week that is from December 12-18, 2020. Know all about ISRO’S 42nd Communication Satellite, and a new kind of Plasmodium causing deadly malaria here

What is “OneerTM”?

Mar 14, 2020
OneerTM is a technology which will be helpful in rural areas and is developed under Make in India Mission. But do you know for what purpose OneerTM is developed, what are its features, how it will work etc. Let us find out through this article.

Green Crackers: Meaning, Composition and Facts

Mar 19, 2020
Firecrackers are enjoyed by most of the children in the Diwali festival. And every time it is seen that due to crackers air pollution increases and affects health. CSIR developed green crackers which are better than previous sound-emitting crackers and other fireworks. Let us read more about green crackers, how they will help in combating air pollution, the composition of green crackers, etc.    

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