chromatography

Chromatography Chromatography is an analytical technique employed for the purification and separation of organic and inorganic substances. It is also very helpful for the fractionation of complex mixtures, separation of closely related compounds such as isomers, homologues as well as in the isolation of unstable compounds. In this technique the compounds are recovered without any change or alterat read more

Criteria of Purity of a Substance

Criteria of Purity of a Substance The melting point and boiling point of a substance indicates the purity of a substance. Every pure compound has a definite melting point or boiling point. If the substance melts at lower temperature or boils at a higher temperature then it is impure. The impurities depress the melting point and elevate the boiling point.   Melting Point: The pure solid substa read more

Purification of Organic Compounds

Purification of Organic Compounds Most of the organic substances when synthetically prepared or isolated from natural source are impure due to the presence of some bye-products or reactants. Before the compound can be analysed qualitatively or quantitatively, it is necessary that it should be in a pure state. Purification is not always easy and various methods depending upon the nature of the comp read more

Nomenclature of Organic Compound Worksheet

Nomenclature of Organic Compounds Worksheet Naming organic compounds 1 described how to name straight-chain hydrocarbons and their derivatives. (if you aren’t familiar with the systematic nomenclature for those compounds, do that worksheet first, and do this one later.) This worksheet will describe how to name simple cyclic hydrocarbons, aromatic compounds, and organic compounds with common read more

Cyclic compounds Worksheet

Cyclic Compounds Woksheet cyclic compound is a class of compounds whose molecules contain a number of atoms bonded together to form a closed chain or ring. If all of the atoms that form the ring are carbon, the compound is said to be carbocyclic; if not, the compound is called heterocyclic. Cyclohexane and benzene are homocyclic hydrocarbons; furfural is heterocyclic, as is pyridine. A cyclic com read more

Programming Concepts

Step of Programming   The programming is the coding instruction codes to solve particular problems. If there is a problem, its solution is also available, but programmers have to follow some important steps to achieve objective of programming.     These steps are described below: Steps of Programming Problem Analysis: The problem analysis is the first and foremost steps of comput read more

Nomenclature of acyclic compounds Worksheet

Nomenclature of acyclic compounds Worksheet Organic compounds in which all the carbon atoms are linked to one another to form open chains either straight or branched are called acyclic or open chain or aliphatic compounds. Here, you can find some questions related to “Nomenclature of acyclic compounds” and their answers: 1. The IUPAC name of the compound:   Acyclic compound   (a)   read more

Nomenclature of Bicylo Compounds

Nomenclature of Bicylo Compounds A class of saturated compounds consisting of two rings only, having two or more atoms in common, containing at least one hetero atom, and that take the name of an open chain hydrocarbon containing the same total number of atoms. In Bicyclo compounds two rings are fused together at two C-atoms known, as Bridged head C-atoms. We name compounds containing 2 fused or b read more

Spiro Compounds

Spiro Compounds A spiro compound is a bicyclic organic compound with rings connected through just one atom. The rings can be different in nature or identical. The connecting atom is also called the spiroatom, most often a quaternary carbon (“spiro carbon”). All spiro compounds have the infix spiro followed by square brackets containing the number of atoms in the smaller ring and the nu read more

Programming Language

Language is a medium of communication. There are several languages developed in separate environment and geographical conditions. Nepali, Newari, Hindi, Maithili, Bhojpuri, Urdu, English, French, Germany, Japani etc are examples of Natural languages where as BASIC, FORTRAN, COBOL, LISP, C, C++, C#, JAVA etc are artificial or fabricated languages. We express our motion – emotions, feelings, u read more