JEE Main 2021 · ChemistryMultiple choiceDiagram basedMediumMulti-step
JEE Main 31 August 2021, Shift 2, Chemistry Q46
Question 46 of 90 in this shift, Chemistry question 16 of 30, Section A.
Identify correct A, B and C in the reaction sequence given below :
[benzene ring] conc. + conc. , -> A -> (, Anhyd. ) B -> (Fe/HCl) C
The figure, in words
Benzene ring; arrow with conc. HNO3 + conc. H2SO4, Δ gives A; A with Cl2 / anhyd. AlCl3 gives B; B with Fe/HCl gives C. Options are drawn substituted benzenes.- (1)A = benzene ring bearing NO2, B = ring bearing NO2 and Cl (1,3 positions as drawn), C = ring bearing Cl and NH2 (1,3 positions as drawn)Official answer
- (2)A = benzene ring bearing NO2, B = ring bearing NO2 and Cl (1,4 positions as drawn), C = ring bearing NH2 and Cl (1,4 positions as drawn)
- (3)A = benzene ring bearing NO2, B = ring bearing NO2 and Cl (1,3 positions as drawn), C = ring bearing Cl and OH (1,3 positions as drawn)
- (4)A = benzene ring bearing NO2, B = ring bearing NO2 and Cl (1,3 positions as drawn), C = ring bearing NH2 and OH (1,3 positions as drawn)
Official answer
Option 1
NTA final key.
- Chapter
- Amines
- Idea tested
- Ortho-Para vs Meta Directing