Explain the classification of phenols with examples.
(N/A) Phenols are classified based on the number of hydroxyl $(-OH)$ groups attached to the aromatic ring:
$1$. Monohydric phenols: These contain only one $-OH$ group attached to the benzene ring. Examples include phenol $(C_6H_5OH)$ and $o$-cresol.
$2$. Dihydric phenols: These contain two $-OH$ groups attached to the benzene ring. Examples include catechol ($1,2$-dihydroxybenzene) and resorcinol ($1,3$-dihydroxybenzene).
$3$. Trihydric phenols: These contain three $-OH$ groups attached to the benzene ring. An example is pyrogallol ($1,2,3$-trihydroxybenzene).
$1$. Monohydric phenols: These contain only one $-OH$ group attached to the benzene ring. Examples include phenol $(C_6H_5OH)$ and $o$-cresol.
$2$. Dihydric phenols: These contain two $-OH$ groups attached to the benzene ring. Examples include catechol ($1,2$-dihydroxybenzene) and resorcinol ($1,3$-dihydroxybenzene).
$3$. Trihydric phenols: These contain three $-OH$ groups attached to the benzene ring. An example is pyrogallol ($1,2,3$-trihydroxybenzene).
Explore More
Similar Questions
Sodium phenoxide when heated with $CO_2$ under pressure at $125\,^{\circ}C$ yields a product which on acetylation produces $C$. The major product $C$ would be
DifficultJEE MAIN 2014
View SolutionThe major product in the following reaction is:
$A$ solution of phenol in chloroform when treated with aqueous $NaOH$ gives compound $P$ as a major product. The mass percentage of carbon in $P$ is $..............$ (to the nearest integer)
(Atomic mass : $C = 12$; $H = 1$; $O = 16$)
(Atomic mass : $C = 12$; $H = 1$; $O = 16$)
Explain the acidic reactions of phenol and describe its acidic nature and strength.
Medium
View SolutionThe correct statement$(s)$ about the following reaction sequence is(are):
Cumene $(C_9H_{12})$ $\xrightarrow[ii) H_3O^+]{i) O_2}$ $P$ $\xrightarrow{CHCl_3/NaOH}$ $Q$ (major) + $R$ (minor)
$Q$ $\xrightarrow[PhCH_2Br]{NaOH}$ $S$
$(A)$ $R$ is steam volatile
$(B)$ $Q$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution
$(C)$ $S$ gives yellow precipitate with $2, 4-dinitrophenylhydrazine$
$(D)$ $S$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution
Cumene $(C_9H_{12})$ $\xrightarrow[ii) H_3O^+]{i) O_2}$ $P$ $\xrightarrow{CHCl_3/NaOH}$ $Q$ (major) + $R$ (minor)
$Q$ $\xrightarrow[PhCH_2Br]{NaOH}$ $S$
$(A)$ $R$ is steam volatile
$(B)$ $Q$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution
$(C)$ $S$ gives yellow precipitate with $2, 4-dinitrophenylhydrazine$
$(D)$ $S$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo