Types of Magnet |Their Differences with Examples
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. […]
Continue readingBrain Parts and its Functions | A Complete Guide
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 […]
Continue readingStructure of heart, Function of its Chambers and valves
Heart is a muscular organ situated in the middle of the chest slightly to the left. It is hollow and conical shaped structure which is enclosed within a pericardium, the peritoneal counterpart for heart. It is placed obliquely, behind the body of sternum and costal cartilages, one third of it being to right, and rest […]
Continue readingDifference between Ion and Atom
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 […]
Continue readingHow thermostat works |Their Types, Examples and Applications
What is a thermostat? A thermostat is an instrument which keeps the temperature of a system at a constant level. It is designed to sense the temperature of a particular system and then perform actions to make the temperature remain at a constant level. The word ‘thermostat’ comes from two ancient Greek words: thermo (which […]
Continue readingLimit test for Lead | Procedure as Per B.P and U.S.P
Lead is one of the toxic heavy metals and its presence is undesirable in medicinal substances. The lead contamination can occur due to the storage in glass bottles, lead-lined apparatus and also due to the use of sulfuric acid. Principle of Limit test for lead As per B.P, the principle of the limit test is […]
Continue readingMass Spectrometry Principle,Types, Instrumentation & Applications
Mass Spectrometry is an analytical technique used to determine the mass and molecular structure of a compound. Unlike other spectroscopy techniques, here the electromagnetic radiation is not used for excitation of electrons. Further, there is also no phenomenon of electrons moving in between the ground state and excited state. The principle of mass spectrometry is […]
Continue readingNMR Spectroscopy Principle, Instrument and Applications
Nuclear magnetic resonance spectroscopy is one that studies the spin changes at the nuclear level. This spin change occurs when a radio frequency energy is absorbed by the nucleus in the presence of a magnetic field. Principle of NMR spectroscopy In an atom with an odd mass number, the proton (nucleus) spins on its own […]
Continue readingLimit Test for Iron with Principle and Procedure
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 […]
Continue readingLimit Test for Sulphates Principle and Experimental Procedure
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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