In the Liebermann nitroso reaction,what is th | vedclass

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Question

(A) The Liebermann nitroso reaction is a test for phenols. When phenol is treated with sodium nitrite $(NaNO_2)$ and concentrated sulfuric acid $(H_2S

Vedclass · Accepted Answer

Brown or red $	o$ Green $	o$ Deep blue

Vedclass · Answer

(A) The Liebermann nitroso reaction is a test for phenols. When phenol is treated with sodium nitrite $(NaNO_2)$ and concentrated sulfuric acid $(H_2SO_4)$,it forms a nitroso compound. The reaction proceeds with a characteristic color change: $1$. The solution initially turns red or brown. $2$. Upon dilution with water,it turns green. $3$. Finally,upon adding an alkali (like $NaOH$),it turns deep blue. Therefore,the sequence is Brown or red $	o$ Green $	o$ Deep blue.

In the Liebermann nitroso reaction,what is the sequence of color changes observed in phenol?

Similar Questions

Identify the product in the following reaction:
Phenol + $CHCl_3 + NaOH \rightarrow \text{Product}$

What is $Z$ in the above sequence of reactions?

The given reaction can occur in the presence of:
$(1)$ Bromine water
$(2)$ $Br_2$ in $CS_2, 273 \ K$
$(3)$ $Br_2 / FeBr_3$
$(4)$ $Br_2$ in $CHCl_3, 273 \ K$
Choose the correct answer from the options given below:
[Image: Phenol reacting to form p-bromophenol as the major product]

Which of the following is a pair of dihydric phenols?

Which statement is incorrect?

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