Nitrobenzene and aniline chemistry

38 questions on Nitrobenzene and aniline chemistry from the Amines and Aromatic Nitrogen Compounds chapter: 8 NEET level, 16 JEE Main, 14 JEE Advanced. Each one opens with its answer and solution.

• The electrophile responsible for nitration of benzene with conc. HNO3 and conc. H2SO4 is NEET level
• Nitrobenzene on reduction with Sn/HCl gives NEET level
• Aniline reacts with excess Br2 water to give NEET level
• Aniline does not undergo Friedel-Crafts alkylation with CH3Cl and AlCl3 because NEET level
• Nitrobenzene is reduced with Zn and aqueous NH4Cl (neutral medium). The main product is JEE Main level
• Nitrobenzene is treated with LiAlH4 in dry ether. The main product is JEE Main level
• Electrolytic reduction of nitrobenzene in strongly acidic medium finally gives JEE Main level
• Direct nitration of aniline with conc. HNO3 and conc. H2SO4 gives a significant amount of 3-nitroaniline because JEE Main level
• When anilinium hydrogensulfate is heated at 453-473 K, the product is JEE Main level
• Aniline is protected as acetanilide before nitration to obtain 4-nitroaniline. Which of the following is NOT a reason for this? JEE Main level
• Oxidation of aniline with acidified K2Cr2O7 gives mainly JEE Main level
• Select the correct statements about the basicity of aromatic amines in water. JEE Main level
• Which sequence converts benzene into 3-bromoaniline? JEE Advanced level
• Aniline is treated with (i) (CH3CO)2O / pyridine to give P; (ii) Br2 in ethanoic acid (1 equiv.) to give Q; (iii) aqueous NaOH, heat, to give R. R is JEE Advanced level
• Select the correct pairs of nitrobenzene reduction conditions and main products. JEE Advanced level
• Select the correct statements about electrophilic substitution of benzene derivatives. JEE Advanced level
• Select the correct statements about aniline. JEE Advanced level
• Nitrobenzene is brominated with Br2/FeBr3 to give Y, and Y is reduced with Sn/HCl to give Z. Select the correct statements. JEE Advanced level
• Nitrobenzene is reduced with Zn and aqueous NH4Cl to give Y. Y is then warmed with dilute H2SO4 to give Z as the major product. Z is JEE Advanced level
• The electrophile responsible for the nitration of benzene with a mixture of conc. HNO3 and conc. H2SO4 is NEET level
• Further nitration of nitrobenzene with fuming HNO3 and conc. H2SO4 at higher temperature gives mainly NEET level
• Nitrobenzene is converted into aniline by NEET level
• Aniline reacts with bromine water to give NEET level
• Nitrobenzene is reduced with Zn and aqueous NH4Cl (neutral medium). The main product is JEE Main level
• Which reagent converts nitrobenzene mainly into azobenzene? JEE Main level
• Aniline does not undergo Friedel-Crafts alkylation or acylation because JEE Main level
• Aniline is first treated with (CH3CO)2O / pyridine, then with Br2 in glacial acetic acid (one equivalent), and the product is hydrolysed with aqueous acid. The ... JEE Main level
• Heating aniline hydrogensulfate at 453-473 K gives, after rearrangement, which product? JEE Main level
• Aniline is treated with benzenesulfonyl chloride, C6H5SO2Cl, in aqueous KOH. The observation is JEE Main level
• Acetanilide undergoes electrophilic substitution less readily than aniline mainly because JEE Main level
• Which of the following reactions of aniline are correct? JEE Main level
• Which sequence converts benzene into 3-bromoaniline? JEE Advanced level
• Nitrobenzene is converted to aniline (Sn/HCl); aniline is treated with (CH3CO)2O / pyridine; the product is brominated with one equivalent of Br2 in acetic acid... JEE Advanced level
• 4-Methylbenzamide is treated with Br2 + NaOH to give P; P is treated with (CH3CO)2O / pyridine to give Q; Q is brominated with one equivalent of Br2 in acetic a... JEE Advanced level
• Assertion: Direct nitration of aniline with a mixture of conc. HNO3 and conc. H2SO4 gives a considerable amount of 3-nitroaniline. Reason: The amino group is a ... JEE Advanced level
• Which of the following statements about aniline are correct? JEE Advanced level
• Which of the following can be used to prepare aniline? JEE Advanced level
• Which pairs of reducing conditions and the major product from nitrobenzene are correctly matched? JEE Advanced level