A compound $(A)$ of molecular formula $C_7H_8O$ is insoluble in water and dilute sodium bicarbonate but dissolves in dilute aqueous sodium hydroxide and gives a characteristic colour with aqueous $FeCl_3$. On treatment with bromine water, it readily gives a precipitate of $C_7H_5OBr_3$. Write down the structure
of the compound $(A)$.
Updated On: Jul 5, 2022
Hide Solution
Verified By Collegedunia
The Correct Option isD
Solution and Explanation
(i) Since $A$ gives characteristic colour with aqueous $FeCl_3$ so it contains a phenolic group.
(ii) Since $A$ when treated with $Br_2$ forms $C_7H_5OBr_3$$(ppt.)$ and considering the molecular formula of $A$, it is most likely to be cresol.
undefined
(iii) Since A on bromination forms tribromo derivative so, it is m-cresol i.e.
The reactions are :
Alcohol is formed when a saturated carbon atom bonds to a hydroxyl (-OH) group. It is an organic compound that contains a hydroxyl functional group attached to a carbon atom.
Phenol is formed when the -OH group replaces the hydrogen atom in benzene. It is an organic compound in which a hydroxyl group directly attaches to an aromatic hydrocarbon.
Ether is formed when oxygen atom bonds to two alkyl or aryl groups. It is an organic compound that has an oxygen atom that is connected to two aryl and alkyl groups.
undefined