Which of the following is a characteristic te | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The phenolic group can be identified by several characteristic tests: $1$. Liebermann's nitroso reaction: Phenols react with $NaNO_2$ and conc. $H

Vedclass · Accepted Answer

All of the above

Vedclass · Answer

(D) The phenolic group can be identified by several characteristic tests: $1$. Liebermann's nitroso reaction: Phenols react with $NaNO_2$ and conc. $H_2SO_4$ to give a deep blue or green color. $2$. Coupling reaction: Phenols react with diazonium salts in alkaline medium to form azo dyes. $3$. Aqueous $FeCl_3$ test: Phenols react with neutral $FeCl_3$ to form a violet-colored complex. Therefore,all the given options are characteristic tests for the phenolic group.

Column-$I$ (Reaction)	Column-$II$ (Product)
$(A)$ Dinitration of $4$-methylphenol	$(i)$ $2$-nitro-$4$-methylphenol + $2$-nitro-$5$-methylphenol
$(B)$ Mononitration of phenyl ethanoate	$(ii)$ $2,4$-dinitro-$5$-methylphenol
$(C)$ Dinitration of $3$-methylphenol	$(iii)$ $4$-nitrophenyl ethanoate
$(D)$ Mononitration of $3$-methylphenol	$(iv)$ $2,6$-dinitro-$4$-methylphenol

Which of the following is a characteristic test for the phenolic group?

Similar Questions

$o-$Nitrophenol is less soluble in water than $p-$ and $m-$Nitrophenols because:

In the Reimer-Tiemann formylation reaction,by how much does the molecular weight of phenol increase?

In the given reaction: $[X] +$ Acetic anhydride $\rightarrow$ Aspirin,$[X]$ will be:

The correct order of boiling point for the given compounds is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module