Give the products of reduction of nitrobenzene under acidic , alkaline and neutral conditions (for 5 marks )
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Answered by
105
1)Strongly acidic medium:-
In acidic medium if nitro benzene is reduced along with tin and concentrated HCl acid,then it is reduced or converted to aniline.
Sn/Conc.HCl C6H5NO2 + 6 [H] → C6H5NH2 + 2H2O
2.Alkaline medium:-
When reduced in alkaline medium,nitro benzene forms some intermediate products like Nitrosobenzene and Phenyl hydroxylamine which undergo bi-molecular condensation reaction.
3.Neutral medium:-
In neutral medium if nitro benzene is reduced alongwith a common neutral reducing agent like Zinc dust,it forms Phenyl hydroxylamine .
Zn
C6H5NO2 + 4 [H] → C6H5NHOH + H2O
Hope it helps!!!
In acidic medium if nitro benzene is reduced along with tin and concentrated HCl acid,then it is reduced or converted to aniline.
Sn/Conc.HCl C6H5NO2 + 6 [H] → C6H5NH2 + 2H2O
2.Alkaline medium:-
When reduced in alkaline medium,nitro benzene forms some intermediate products like Nitrosobenzene and Phenyl hydroxylamine which undergo bi-molecular condensation reaction.
3.Neutral medium:-
In neutral medium if nitro benzene is reduced alongwith a common neutral reducing agent like Zinc dust,it forms Phenyl hydroxylamine .
Zn
C6H5NO2 + 4 [H] → C6H5NHOH + H2O
Hope it helps!!!
Answered by
14
Nitrobenzene is a natural compound with the substance equation C6H5NO2. It is a water-insoluble light yellow oil with an almond-like scent. It stops to give greenish-yellow gems. It is delivered on a vast scale from benzene as an antecedent to aniline. In the research facility, it is incidentally utilized as a dissolvable, particularly for electrophilic reagents.
Nitrobenzene is set up by nitration of benzene with a blend of concentrated sulfuric corrosive, water, and nitric corrosive. This blend is once in a while called "blended corrosive." The generation of nitrobenzene is a standout amongst the most hazardous procedures led in the compound business in light of the exothermicity of the response (ΔH = −117 kJ/mol)
The acidic, soluble and unbiased conditions keep running from 0 to 14, where impartial is ideal in the center at 7.0. Under 7.0 is acidic (sharp) and more is basic (sweet). Lemon juice, for instance, has a low pH of 2.0 while preparing pop measures a high 8.5.
The synthetic responses depicted as a decrease of nitro mixes can be affected by numerous reagents and response conditions. Verifiably, the nitro gathering was one of the main practical gatherings to be decreased.
Alkyl and aryl nitro mixes carry on in an unexpected way. Therefore, lessening conditions can be comprehensively grouped by beginning materials: aliphatic nitro mixes or fragrant nitro mixes. Optional characterizations depend on response items.
Nitrobenzene is set up by nitration of benzene with a blend of concentrated sulfuric corrosive, water, and nitric corrosive. This blend is once in a while called "blended corrosive." The generation of nitrobenzene is a standout amongst the most hazardous procedures led in the compound business in light of the exothermicity of the response (ΔH = −117 kJ/mol)
The acidic, soluble and unbiased conditions keep running from 0 to 14, where impartial is ideal in the center at 7.0. Under 7.0 is acidic (sharp) and more is basic (sweet). Lemon juice, for instance, has a low pH of 2.0 while preparing pop measures a high 8.5.
The synthetic responses depicted as a decrease of nitro mixes can be affected by numerous reagents and response conditions. Verifiably, the nitro gathering was one of the main practical gatherings to be decreased.
Alkyl and aryl nitro mixes carry on in an unexpected way. Therefore, lessening conditions can be comprehensively grouped by beginning materials: aliphatic nitro mixes or fragrant nitro mixes. Optional characterizations depend on response items.
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