One Liner| Organic| B.pharmacy| Pharmacy One Liners |organic Chemistry| B.pharmacy File-2

a chemical reaction in which two species (e.g. molecules, ions or radicals) react together to form new chemical species.

bimolecular reaction

the energy required to break a particular bond by a homolytic process.

bond energy

any of two or more hypothetical structures of resonance theory which can be written for a molecule simply by rearranging the valence electrons of the molecule.

canonical structures

a solution of definite pH made up in such a way that the pH alters only gradually with the addition of an acid or a base.

buffer solution

the energy required to break a particular bond by a homolytic process.

bond energy

a substance that, when added to a reaction mixture, changes (speeds up) the rate of attainment of equilibrum in the system without itself undergoing a permanent chemical change.

catalyst

the method for producing gasoline from heavy petroleum distillates.

catalytic cracking

electron systems in which bonding electrons are not localised between two atoms as for a single bond but are spread (delocalized) over the whole group.

delocalization

the process of improving the octane number of straight-run gasoline by increasing the proportion of aromatic and branched chain alkanes.

catalytic reforming

the phenomenon in which plane polarised light is turned in a clockwise direction.

dextrorotatory

reactions which proceed by means of a set of repeating cyclical steps, e.g. the free radical addition of hydrogen bromide to an alkene.

chain reaction

stereoisomeric structures which are not enantiomers (mirror images) of one another.

diastereomers

a term which may be applied to any asymmetric object or molecule. The property of non-identity of an object with its mirror image

chirality

the angle between groups attached on adjacent carbon atoms when viewed in a Newman projection.

dihedral angle