Lewis Acid
A substance which can accept a pair of electrons is termed Lewis acid..
Lewis Acid - Base Reaction
Whenever a Lewis acid reacts with a Lewis base, a covalent bond is formed. For example, CO 2 (Lewis acid) reacts with OH - (Lewis base) to give HCO 3 - (bicarbonate ion), BF 3 (boron trifluoride) behaves as a Lewis aci..
Whenever a Lewis acid reacts with a Lewis base, a covalent bond is formed. For example, CO 2 (Lewis acid) reacts with OH - (Lewis base) to give HCO 3 - (bicarbonate ion), BF 3 (boron trifluoride) behaves as a Lewis aci..Lewis Concept of Acids and Bases
In 1938 G.N. Lewis put forward a more generalized acid-base concept. According to this concept, an acid is a species (charged or uncharged), which can accept a pair of electrons and a base is a species (charged and uncharged), which can donate a pair of electrons tow..
In 1938 G.N. Lewis put forward a more generalized acid-base concept. According to this concept, an acid is a species (charged or uncharged), which can accept a pair of electrons and a base is a species (charged and uncharged), which can donate a pair of electrons tow..Lewis Concept of Acids and Bases
Lewis Concept of Acids and Bases - Although Bronsted-Lowry theory was more general than Arrhenius' theory of acids and bases, it failed to explain the acid-base reactions which do not involve transfer of proton. For e.g., it fails to explain how acidic..
Lewis Concept of Acids and Bases
Although Bronsted-Lowry theory was more general than Arrhenius' theory of acids and bases, it failed to explain the acid-base reactions which do not involve transfer of proton. For e.g., it fails to explain how acidic oxide such as anhydrous CO 2 , SO 2 , SO 3 e..
ACIDS AND BASES
Properties of acids, bases and salt solutions Acids and Bases Strong acids and bases; Weak acids and bases pH scale to characterize acid and base solutions The Arrhenius, Bronsted-Lowry and Lewis acid-base definitions ..
ACIDS AND BASES
Properties of acids, bases and salt solutions Acids and Bases Strong acids and bases; Weak acids and bases pH scale to characterize acid and base solutions The Arrhenius, Bronsted-Lowry and Lewis acid-base definitions ..
Acidic character
Boric acid is a very weak monobasic acid, (K a = 1x10 - 9 ). It behaves as a Lewis acid accepting a hydroxyl ion,..
Boric acid is a very weak monobasic acid, (K a = 1x10 - 9 ). It behaves as a Lewis acid accepting a hydroxyl ion,..By the action of halogen acids
Alcohols can be converted into haloalkanes by treatment with halogen acids (HX). However, the rate of the reaction depends on both the nature of alcohol and the halogen acid. For example: Primary and secondary alcohols form chloroalkanes when hydrochloric acid gas is ..
Alcohols can be converted into haloalkanes by treatment with halogen acids (HX). However, the rate of the reaction depends on both the nature of alcohol and the halogen acid. For example: Primary and secondary alcohols form chloroalkanes when hydrochloric acid gas is ..Aryl Halides or Haloarenes
Direct chlorination or bromination of benzene or other aromatic hydrocarbon gives chloroarenes and bromoarenes. These reactions are carried out in the presence of Lewis acids such as ferric or aluminium halides (FeCl 3 , FeBr 3 , AlCl 3 ) in the dark, at ordinary tempera..
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