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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceDiagram basedEasyRecall

JEE Main 28 June 2022, Shift 2, Chemistry Q80

Question 80 of 90 in this shift, Chemistry question 20 of 30, Section A.

The drug tegamet is :

The figure, in words

All four options are drawn structures (skeletal formulas), described as drawn in the options.
  1. (1)[figure: five-membered ring containing two N atoms, an N bearing H at the top (H drawn above it) and a second N at lower left, with ring double bonds; the ring carbon at lower right carries a two-carbon zigzag chain ending in NH2\mathrm{NH_2}]
  2. (2)[figure: five-membered ring containing O (O at the bottom) with ring double bonds; the left ring carbon carries a one-carbon line to NMe2\mathrm{NMe_2}; the right ring carbon carries a one-carbon line to S, then a two-carbon zigzag to N (H drawn below the N), then a carbon double-bonded upward to CH(NO2)\mathrm{CH(NO_2)} and bearing NHMe\mathrm{NHMe}]
  3. (3)[figure: five-membered ring containing two N atoms (N at upper left and N at lower left) with ring double bonds; the upper-right ring carbon carries CH3\mathrm{CH_3}; the lower-right ring carbon carries a one-carbon line to S, then a two-carbon zigzag to N (H drawn below the N), then a carbon double-bonded to N, which carries CN, and bearing NHCH3\mathrm{NHCH_3}]Official answer
  4. (4)[figure: six-membered ring containing N; the N carries a zigzag chain of four carbons, the last bearing HO (drawn below) and bonded to a six-membered ring drawn with alternating double bonds, which carries at the opposite ring position a carbon bearing three methyl lines; the ring carbon opposite the N carries a carbon bearing HO and two Ph]

Official answer

Option 3

NTA final key.