General Knowledge Questions

An atom is the smallest particle of a substance. Chemical substances are divided into two major groups. They are

1. Pure Substances (and)

2. Mixtures.

There are two types of pure substances that are Elements and Compounds.

Elements : An element is a substance that is made up of only one kind of atoms and cannot be broken down into simpler substances by chemical means. Metals and Non- metals come under elements.

Examples of elements are Iron, Silver, Gold, Mercury etc.

Compounds : A Compound is a substance that is formed when two or more elements combine chemically.

Examples of compounds are Water, Carbon dioxide, methane, vinegar etc.

Mixtures : A Mixture is formed when two or more substances mixed together but not chemically combined.

Example: Air.

Norway is called as the land of midnight sun.

Rainfall and addition of fresh water from rivers reduce salinity neat the coasts.

The first Indian woman President of Indian National Congress was Sarojini Naidu in the year 1925.

First woman to become the president of INC - Annie Besant 1917.

We know that, elements in the same group of the periodic table have similar characteristics. Here magnesium and strontium are the same 2nd group elements and have same behavior. 

Therefore, strontium behaves same as magnesium. 

Shahi Litchi of Bihar recently got a GI tag and got official recognition for Muzaffarpur in Bihar.

Study of Life in outer space or search of life external to Earth is known as Exobiology.