Chemistry

Central Metal Ion: In the complex ion an acceptor accepts a pair of electrons from the donor atoms. The acceptor is usually a metal/metal ion…

Nature of coordination (or) complex compounds (i) An anionic complex compound contains a complex anion and simple cation. K4[Fe(CN)6] ↔ 4K+ (simple cation) + [Fe…

The principle of Le Chateliar: When a system is at equilibrium, a change in any one of the factors (such as temperature, pressure, concentration) upon…

The constant KC is called the equilibrium constant and applies to reactions in solution. It contains only concentration terms. It should not included terms for…

Chemical equilibrium: A chemical equilibrium in a system is the state of the system when there is no observable change in the concentration of the…

Lanthanides and Actinides both show close resemblance because these involve filling of f-subshells. Both have colored ions, low electronegativity, high re-activity and show magnetic properties.…

Use of lanthanides A pyrophoric alloy which contains cerium, lanthanum and Neodymium; iron; aluminium; calcium, carbon and silicon is used in cigarette lighters, toys, flame…

Extraction of Lanthanides from Monazite sand The method used for extraction of lanthanides from monazite sand consists of the steps which have been shown in…

The cause of actinide contraction is the imperfect shielding by 5f-electrons. As we proceed from one element to the next one in the actinide series,…

General Properties of Actinide Series (5f block elements) In 1923 Neils Bohr postulated the existence of an actinide series analogous to the lanthanide series. The…