high resonance

The effects of resonance is prominent in conjugated systems (having alternate single and double bonds) wherein displacements of electrons from one part of the molecule to another part takes place, creating centers of high and low electron densit..

Magnetic Resonance Imaging - It is also called Nuclear Magnetic Resonance (NMR) spectroscopy as it is based on this phenomenon. It is a diagnostic technique that provides high quality cross-sectioned two or three - dimensional images of organs without having X-rays or ..

Phenoxide is more stabilised by resonance than phenol. In phenol, three contributing structures involve charge separation whereas in case of phenoxide ion there is no charge separatio..

>Thus, the order of stability is: CH 3 + < 1 o < 2 o < 3 o Other carbocations are benzyl carbocation, which is primary in nature but is highly stable because of resonance stabilizatio..

The structure of a nitro group can be represented as a resonance hybrid of two equivalent zwitter ionic polar structure..

Several types of microphones depend for their action upon the voltage induced in a conductor moving in a magnetic field. The dynamic or moving-coil micro- phone contains a small coil attached to a diaphragm, so arranged that when the diaphragm vibrates, the coil moves back and forth in a radial ma..

Uses of Noble Gases - Argon is used mainly to provide an inert atmosphere in high temperature metallurgical processes (arc welding of metals or alloys) and for filling electric bulbs. It is also used in the laboratory for handling substances that are air-sensitive. Helium is a non-flammab..

Emission and Absorption Spectra - One can understand atomic spectra if one knows the concept of atomic energy levels. The movements of electrons from one level to another causes the spectra. The work of a spectoscopicst is to find the energy levels of an atom from the measured values of the wavelen..

>Since carbon and oxygen have different values of electronegativity, the bond between carbon and oxygen is polar. The electron density around the oxygen atom is increased which causes the development of partial positive charge ( d +) on carbon and a partial negative charge ( d -) on oxygen ato..