conditions of elimination reactions

The reactions in which a small molecule is removed from adjacent carbon atoms resulting in the formation of additional (multiple) bond between them are called elimination reactions. For example,..

There are some conditions associated with the process of combustion. The substance to be burnt must be combustible (the substance must catch fire easily). Wood, paper, coal, coke, hydrogen, liquified petroleum gas, natural gas, petrol, kerosene, diesel, alcohol, ether etc. are some of the..

Haloalkanes undergo elimination of hydrogen halide (HX) when boiled with alcoholic solution of potassium hydroxide, resulting in the formation of alkenes. As the hydrogen atom present at b -position of haloalkane (i.e., on the carbon atom next to the one carrying the halogen) is removed..

If heat is required for a reaction to take place, then the sign (delta) is placed over the arrow of the equation. If the reaction takes place in the presence of a catalyst then the symbol or formula of the catalyst is written above or below the arrow. If the reactio..

Combustion - The burning of a substance is called combustion. It is an exothermic process (chemical reactions which give out heat to the surroundings are called exothermic reactions). E.g., Burning of coal Burning of butane gas (g - gas form) The common observation in the above ..

The criterion for a chemical change is the production of one or more new substances. Therefore, certain conditions should be met in order to bring about a chemical change. The necessary conditions are: 1) A minimum amount of energy needed to initiate a reaction (activa..

The reactions in which the products can react with one another under suitable conditions to give back the reactants are called reversible reactions..

In these reactions the migration of atoms or groups of atoms takes place from one position to another within the molecule under suitable conditions. For example,..

Chemical reactions are the processes in which new substances with new properties are formed. A chemical reaction should satisfy the following conditions: There must not be either a gain or loss of matter. There must be either an evolution or an absorption of heat i.e. ..

Oxygen (or dioxygen) oxidizes many compounds under suitable conditions. Hydrogen chloride gets oxidized to chlorine This reaction forms the basis of manufacturing nitric acid from ammonia (Ostwald's process). Sulphur dioxide oxidizes to sulphur trioxide..