Answer
77.7k+ views
Hint : We can define an anhydride compound as a compound that is formed from another compound by dehydration or elimination of water. Anhydrides have functional groups which used to be derivatives of either acid or bases. Basic anhydrides have a different pattern from acid anhydrides. Anhydrides can be organic and inorganic both.
Complete step by step solution:
> In organic chemistry acid anhydrides contain the functional group \[R\left( {CO} \right)O\left( {CO} \right)R'\]. Hence an acid anhydride compound contains two acyl groups bonded to the same oxygen atom. A common example of acid anhydride is carboxylic anhydride whose parent acid is a carboxylic acid. The organic anhydrides introduces the acyl group $(RCO)$ in organic synthesis. Anhydrides reacts with water and produces carboxylic acids.
> In the options all are organic compounds. In the given organic compounds we have to identify the functional group \[R\left( {CO} \right)O\left( {CO} \right)R'\]. If in the given compounds we consider $C{H_3} - $ group as $R - $ group then analysis will become easy. In the first option we have found this compound satisfy the formula\[R\left( {CO} \right)O\left( {CO} \right)R'\] of anhydride compounds where $R = R' = C{H_3}$, hence this is a symmetric type of anhydride. The rest of the option does not satisfy the chemical formula of anhydrides so they are not anhydrides.
So here option A is the correct answer to this question. Compound ( A) is acetic anhydride.
Note : Anhydrides produces ester when it reacts with alcohol or phenol and with ammonia and amines it produces amides. Symmetric acid anhydrides can be prepared easily and have a wide range of applications. These are used in synthesis of other useful organic compounds and used as reagents for amines.
Complete step by step solution:
> In organic chemistry acid anhydrides contain the functional group \[R\left( {CO} \right)O\left( {CO} \right)R'\]. Hence an acid anhydride compound contains two acyl groups bonded to the same oxygen atom. A common example of acid anhydride is carboxylic anhydride whose parent acid is a carboxylic acid. The organic anhydrides introduces the acyl group $(RCO)$ in organic synthesis. Anhydrides reacts with water and produces carboxylic acids.
> In the options all are organic compounds. In the given organic compounds we have to identify the functional group \[R\left( {CO} \right)O\left( {CO} \right)R'\]. If in the given compounds we consider $C{H_3} - $ group as $R - $ group then analysis will become easy. In the first option we have found this compound satisfy the formula\[R\left( {CO} \right)O\left( {CO} \right)R'\] of anhydride compounds where $R = R' = C{H_3}$, hence this is a symmetric type of anhydride. The rest of the option does not satisfy the chemical formula of anhydrides so they are not anhydrides.
So here option A is the correct answer to this question. Compound ( A) is acetic anhydride.
Note : Anhydrides produces ester when it reacts with alcohol or phenol and with ammonia and amines it produces amides. Symmetric acid anhydrides can be prepared easily and have a wide range of applications. These are used in synthesis of other useful organic compounds and used as reagents for amines.
Recently Updated Pages
Name the scale on which the destructive energy of an class 11 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write an article on the need and importance of sports class 10 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Choose the exact meaning of the given idiomphrase The class 9 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Choose the one which best expresses the meaning of class 9 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What does a hydrometer consist of A A cylindrical stem class 9 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
A motorcyclist of mass m is to negotiate a curve of class 9 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)