Primary (1^@) amine group is formed in :...

Primary `(1^@)` amine group is formed in :

Text Solution

AI Generated Solution

The correct Answer is:

To determine which reactions produce primary amine groups, we will analyze each given option step by step. ### Step 1: Analyze the first reaction - The first reaction involves a nitro compound (NO2) reacting with N-E-H-S (which is likely a reducing agent). - When one equivalent of N-E-H-S is used, the nitro group (NO2) is reduced to an amine group (NH2). - The resulting product has the nitrogen atom connected to only one carbon atom and has two hydrogen atoms attached to it. **Conclusion for Step 1**: This product is a primary amine. ### Step 2: Analyze the second reaction - The second reaction involves an amine (NH2) reacting with a carbonyl compound (C=O) in the presence of Br2 and KOH. - The product formed from this reaction also has the nitrogen atom connected to only one carbon atom, with two hydrogen atoms attached. **Conclusion for Step 2**: This product is also a primary amine. ### Step 3: Analyze the third reaction - The third reaction involves chlorobenzene reacting with CH2NH2, Cu2O, and heat. - The product formed has the nitrogen atom connected to two carbon atoms (one from the chlorobenzene and one from CH2), indicating that this is a secondary amine. **Conclusion for Step 3**: This product is not a primary amine. ### Step 4: Analyze the fourth reaction - The fourth reaction involves benzene diazonium salt (N2Cl) reacting with Zn/HCl. - The product formed is aniline (NH2 connected to a benzene ring), which has the nitrogen atom connected to only one carbon atom (the benzene ring) and has two hydrogen atoms attached. **Conclusion for Step 4**: This product is a primary amine. ### Final Conclusion - From the analysis, the reactions that produce primary amines are: - Reaction 1: Produces a primary amine. - Reaction 2: Produces a primary amine. - Reaction 3: Does not produce a primary amine (produces a secondary amine). - Reaction 4: Produces a primary amine. Thus, the correct options that yield primary amines are A, B, and D.

Topper's Solved these Questions

QUALITATIVE ANALYSIS PART 1
RESONANCE ENGLISH|Exercise A.L.P|39 Videos
SOLID STATE
RESONANCE ENGLISH|Exercise PHYSICAL CHEMITRY (SOLID STATE)|45 Videos

When primary amine reacts with chloroform in ethanolic KOH, then product is :

an isocyanide

an aldehyde

a cyanide

an alcohol

Assertion: Reductive amination involves the transfer of amino group from one amino acid to the keto group of a keto acid. Reason: In reductive amination, transfer of NH_(2) from glutamic acid takes place.

If both assertio and reason are true and reason is the correct explanation of assertion

if both assertion and reason are true but reason is not the correct explanation of assertion

if assertion is true but reason is false

if both assertion and reason are false

The presence of primary amine can be confirmed by its reaction with :

`HNO_2`

`CHCI_3 + NaOH`

`CS_2 and HgCI_2`

`H_(2) SO_(4)`