Question

Mechanism of acid base catalysis
and what is catalysis
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Answer 1

Answer:

The mechanism of acid and base catalyzed reaction is explained in terms of Br●nsted-lowry.

Explanation:

concept of acids and bases as one in which there is an initial transformation of protons from an acidic catalyst to the reactant or from the reactant to a basic catalyst.

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Answer 2

Hola mate

Here is your answer -

• Acid–base catalysis, acceleration of a chemical reaction by the addition of an acid or a base, the acid or base itself not being consumed in the reaction. The catalytic reaction may be acid-specific (acid catalysis), as in the case of decomposition of the sugar sucrose into glucose and fructose in sulfuric acid; or base-specific (base catalysis), as in the addition of hydrogen cyanide to aldehydes and ketones in the presence of sodium hydroxide. Many reactions are catalyzed by both acids and bases.The mechanism of acid- and base-catalyzed reactions is explained in terms of the Brønsted–Lowry concept of acids and bases as one in which there is an initial transfer of protons from an acidic catalyst to the reactant or from the reactant to a basic catalyst. In terms of the Lewis theory of acids and bases, the reaction entails sharing of an electron pair donated by a base catalyst or accepted by an acid catalyst.   Acid catalysis is employed in a large number of industrial reactions, among them the conversion of petroleum hydrocarbons to gasoline and related products. Such reactions include decomposition of high-molecular-weight hydrocarbons (cracking) using alumina–silica catalysts (Brønsted–Lowry acids), polymerization of unsaturated hydrocarbons using sulfuric acid or hydrogen fluoride (Brønsted–Lowry acids), and isomerization of aliphatic hydrocarbons using aluminum chloride (a Lewis acid). Among industrial applications of base-catalyzed reactions is the reaction of diisocyanatos with polyfunctional alcohols in the presence of amines, used in the manufacture of polyurethane foams.

• In popular terms, catalysis is a process that accelerates a chemical reaction which would otherwise be uselessly slow. Catalysis makes it possible to turn a great variety of resources into important and necessary products – quickly, efficiently and with a minimum of energy and waste. The agent that makes all this happen is called a catalyst. The importance of catalysis to industry, the environment and our everyday lives is huge. In one way or another, catalysis is involved in 90% of all commercially produced products – from fertilizer to furniture to the fuel in our cars. It can make expensive processes cheaper, or turn worthless waste into valuable commodities. It can clean the air we breathe.