## Taxonomic Hierarchy

In biological classification, Taxonomic hierarchy is the process of arranging various organisms into successive levels of the biological classification from kingdom to species and vice versa. Each level of this …

## Fundamental Principle of Counting

In combinatorics, the rule of product or multiplication principle is a basic counting principle, which here we know as the Fundamental Principle of Counting. It is a rule which we …

## Gattermann Reaction

The Gattermann reaction is as an organic chemical reaction in which Aromatic compounds are formylated by a mixture of hydrogen cyanide and hydrochloric acid(HCL) in the presence of a Lewis …

## Sandmeyer Reaction

Sandmeyer Reaction is basically a substitution reaction, which is widely used to synthesize aryl halides from aryl diazonium salts.  To be specific, this reaction is a type of Radical-nucleophilic aromatic …

## Cathode Ray Experiment

Cathode Ray Experiment or also commonly known as J.J. Thomson’s experiment is one of the important experiments in particle physics. Electrons which are one of the fundamental particles were discovered …

## Complex Number

A complex number is a number that can be expressed in the form of (a+ib), where a & b are real numbers and ‘i’ is an imaginary unit i.e. i …

## Parallel and Perpendicular Axis Theorems

The parallel and perpendicular axis theorems are used to find the moment of inertia of a rigid body about different axes that pass through the center of mass of the …

## Binomial Theorem

Binomial theorem (or Binomial Expansion) gives us a way for finding any power of a binomial without multiplying at length. History 1. Special cases of the binomial theorem were known …

## Kepler’s Laws Of Planetary Motion

Kepler’s laws of planetary motion, are the laws that describe the motions of the planets in the solar system. These laws were derived by Johannes Kepler, a German astronomer, in …

## Pythagorean Theorem

Pythagorean theorem or Pythagoras theorem is a fundamental relationship in Euclidian Geometry.  It relates three sides of a right-angled triangle. History The theorem is generally associated with Greek mathematician-philosopher Pythagoras …

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