types of organic reaction that is polar reaction non polar reaction four centre type reaction fregmentation reaction

There are four types of reactions..

The reactions in which an atom or group of atoms in a molecule is replaced or substituted by different atoms or group of atoms are called substitution reaction..

Reactions in which two molecules react to form a single product are called addition reactions. For example, Depending upon the type of attacking reagent, the substitution or addition reactions are also classified as free radical, electrophilic or nucleop..

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The heat or enthalpy changes taking place during the chemical reactions are expressed in different ways depending upon the nature of the reaction. The various types of enthalpies of reactions a..

When a chemical reaction occurs how are new substances produced? Do atoms of one element transform themselves into atoms of another element? Do atoms withdraw from the mixture or turn up from elsewhere? Neither of these happens; what takes place is the breaking of old bonds between atoms..

The heat or enthalpy changes taking place during the chemical reactions are expressed in different ways depending upon the nature of the reaction..

When a chemical reaction occurs how are new substances produced? Do atoms of one element transform themselves into atoms of another elemen..

Metals and Non-metals..

Rate of reaction Concentration, temperature, and pressure - their effect on reaction rates Role a catalyst in reaction rates Definition and role of activation energy in a chemical reactio..