Category Archives for "Science"

Types of Magnet |Their Differences with Examples

types of magnet

Magnets are objects that produce a force that attracts other ferromagnetic materials, like iron. They also either attract or repel other magnets. These magnets are broadly classified into 3 types like Permanent magnet Induced magnet Electromagnet Ancient people learned about magnetism when they discovered lodestones (or magnetite) which are naturally magnetized pieces of iron ore. […]

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Brain Parts and its Functions | A Complete Guide

Brain Parts and Functions

The brain is the principal organs that run our body. It is protected inside the skull and is the central part of the nervous system. It is classified as a part of the Central Nervous System (CNS) along with the spinal cord. The peripheral nervous system (PNS) comprises of the spinal nerves that branch out […]

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Difference between Ion and Atom

Ions of sodium and chloride in water

The difference between ion and atom are given in the table below. But before that one needs to be clear of what is an atom and ion. Atom is the basic unit of matter. A group of atoms makes up matter. These atoms have a nucleus, with protons and neutrons in it. This nucleus is […]

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Limit Test for Iron with Principle and Procedure

Limit test for iron

Limit test for iron is a semi-quantitative test used to check the iron impurities in an official sample. Principle: This test is based on the reaction of thioglycolic acid with iron in the given sample. A purple colored ferrous thioglycolate salt is formed. The color intensity is compared with that of a standard substance containing […]

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Limit Test for Sulphates Principle and Experimental Procedure

Limit test for sulphates

Limit test for sulphates is based on the principal of precipitation of sulfate ions by barium chloride. It is done to check the extent of sulfate impurities in officially prepared products. Principle: The test depends on the interaction between the sulfate ions with the barium chloride in the presence of hydrochloric acid. BaCl2 + SO42———————> […]

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