Chemistry

Understanding Electronegativity of the Nucleophilic Atom

Electronegativity and electron affinity both are correlated with respect to the tendencies toward accepting electrons. Electron affinity refers to the property of a gaseous and neutral atom in an isolated state. It refers to the tendency of a gaseous and neutral atom to accept an electron. It is a quantitative term measured in terms of […]

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Chemistry, UPSC

UNSYMMETRICAL KETONES

Ketones are manufactured on a large scale in different industries such as pharmaceuticals, polymer precursors etc. The most ketones produced are acetone, methyl ethyl ketone and cyclohexanone. One type of ketone is an unsymmetrical ketone and its definition is: Unsymmetrical ketone refers to that ketone that is present in the molecule and the 2 ligands

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Chemistry, UPSC

Types of Zeolites

For more than 60 years, zeolite molecular sieves have served as adsorbents in gas and liquid phase separation processes. Static applications might make use of zeolite adsorbents in powdered form. To prevent moisture absorption and a chemical reaction between water and the isocyanate component, zeolite 3A powder is added to the polyol component during polyurethane

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Chemistry, UPSC

Types of Tautomerism

The phenomenon in which a single chemical compound exists in a couple or more structures that are inconvertible and are non-similar in terms of the relative position of 1 atomic nucleus that is usually hydrogen is known as Tautomerism. The 2 structures are known as Tautomers. Such compounds are non-similar only in the number of

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Chemistry, UPSC

Types of Reactions In Organic Chemistry

Organic reactions are basically chemical reactions involving organic compounds.  One of the first organic reactions was combustion reactions of fuels and saponification.  In 1912 Nobel Prize was awarded for the invention of the Grignard reaction.  There are different types of organic reactions: Addition reactions Elimination reactions Substitution reactions Pericyclic events Rearrangement reactions Photochemical reactions Redox

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Chemistry, UPSC