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Atomic no: 30
Mass No: 65

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xylic acid

Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.

Cell Potential

Potential difference, Ecell, between oxidation and reduction half-cells under nonstandard conditions.


Coordination Sphere

The metal ion and its coordinating ligands but not any uncoordinated counter-ions.

Lead Storage Battery

Secondary voltaic cell used in most automobiles.


A substance that speeds up a chemical reaction without being consumed itself in the reaction.
A substance that alters (usually increases) the rate at which a reaction occurs.

Graham's Law

The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.

Forbidden Zone

A relatively large energy separation between an insulator's highest filled electron energy band and the next higher energy vacant band. Beginning in the fourth energy level, a set of seven degenerate orbitals per energy level, higher in energy than s, p, and d orbitals of the same energy level.


A positive ion, an atom or group of atoms that has lost one or more electrons.


A measure of the relative tendency of an atom to attract electrons to itself when chemically combined with another atom.

Osmotic Pressure

The hydrostatic pressure produced on the surface of a semipermable membrane by osmosis.