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When an primary aromatic amine is treate...

When an primary aromatic amine is treated with `NaNO_(2)+HCI` at `0^(@)-5^(@)C`, a diazonium salt is formed and the reaction is called diazo reaction. In this reaction mineral acid must be added to prevent the coulping reaction of diazonium salt with excess of aryl amine. diazonium salt is highly in the synthesis of number of coloured dyes.
For the following diazonium ion the decreasing order of reactivity of these ion in azo-coupling reaction:

A

`Q gt S gt R gt P`

B

`Q gt S gt P gt R`

C

`P gt Q gt R gt S`

D

`S gt R gt Q gt P`

Text Solution

Verified by Experts

The correct Answer is:
B
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When an primary aromatic amine is treated with NaNO_(2)+HCI at 0^(@)-5^(@)C , a diazonium salt is formed and the reaction is called diazo reaction. In this reaction mineral acid must be added to prevent the coulping reaction of diazonium salt with excess of aryl amine. diazonium salt is highly in the synthesis of number of coloured dyes. In the given reaction. The final product is

Diazonium Salt

When an primary aromatic amine is treated with NaNO_(2)+HCI at 0^(@)-5^(@)C , a diazonium salt is formed and the reaction is called diazo reaction. In this reaction mineral acid must be added to prevent the coulping reaction of diazonium salt with excess of aryl amine. diazonium salt is highly in the synthesis of number of coloured dyes. When 2,4-dinitrophenol react with NaNO_(2)+HCI at 5^(@)C followed by reaction with anisole, a coloured compound is formed which can be given as:

Reaction Of Diazonium Salt

Diazonium salts , the reaction is known as

Which is NOT the reaction of diazonium salt?

From Diazonium Salts

Diazonium salt , the reaction is known as