Question

what do you mean by dehydration reaction? Give one example​

Answer 1

Answer:

• dehydration reaction is a conversion that involves the loss of water from the reacting molecule or ion. Dehydration reactions are common processes, the reverse of a hydration reaction. Common dehydrating agents used in organic synthesis include sulfuric acid and alumina. Often dehydration reactions are effected with heating.

Dehydration reactions Example

• The classic example of a dehydration reaction is the Fischer esterification, which involves treating a carboxylic acid with an alcohol in the presence of a dehydrating agent:

$RCO2H + R′OH ⇌ RCO2R′ + H2O$

• Two monosaccharides, such as glucose and fructose, can be joined together (to form saccharose) using dehydration synthesis. The new molecule, consisting of two monosaccharides, is called a disaccharide.

• The process of hydrolysis is the reverse reaction, meaning that the water is recombined with the two hydroxyl groups and the disaccharide reverts to being monosaccharides.

• In the related condensation reaction water is released from two different reactants.

• In organic synthesis, there are many examples of dehydration reaction, for example dehydration of alcohols or sugars.

$hope \: its \: help \: u$