Question

Decarboxylation of cinnamic acid gives:
A.Benzene
B.Toluene
C.Ethylbenzene
D.Styrene

Answer 1

Hint:We should firstly know about the decarboxylation reaction and also about the cinnamic acid then we should study in detail how the decarboxylation reaction takes place. We should know that this reaction leads to the elimination of the carbon dioxide as the byproduct.

Complete step-by-step answer:Firstly we will talk about the decarboxylation process . so we should know that the decarboxylation is a process or a reaction we can say which is when carried out it removes the carboxyl group and further releases carbon dioxide. Also discussing more on it we can say that this reaction is always carried out when we need to have the product with one atom less than the given chain then we generally make use of this reaction and also carbon dioxide is obtained as a byproduct.
Then in the question we come across the other word that is cinnamic acid . putting a light on this topic we come to know that it is an organic compound . as it is the organic compound we can say that it is soluble fully in organic solvents and slightly soluble in water. Also, it is white in colour.
Now we will discuss the process of decarboxylation of the cinnamic acid . so the reaction takes place like this .consider cinnamic acid then to carry out the decarboxylation process the sodium hydroxide and calcium oxide is added to the cinnamic acid and we found that as the process progress the removal of carbon dioxide takes place leading to the formation of the product which has one carbon less and this further leads to the formation of the product called styrene.

Note:We should know one fact that cinnamic acid is considered as the unsaturated carboxylic acid and it is obtained from the plants.