JEE Main 2021 · ChemistryMultiple choiceDiagram basedMediumMulti-step
JEE Main 17 March 2021, Shift 2, Chemistry Q47
Question 47 of 90 in this shift, Chemistry question 17 of 30, Section A.
[structure]
(A)
In the above reaction, the structural formula of (A), "X" and "Y" respectively are :
The figure, in words
Stem: left side C7H7N2OCl (labelled (A)) + C2H5OH; arrow to a benzene ring bearing OCH3 at the top, then + N2 + "X" + "Y". Options each list three items separated by commas: a substituted benzene ring (N2+ with either a Cl- counter-ion beside it or a O-bar CH3 written beside it, at the top; Cl or OCH3 at the bottom), then X (a three-membered ring with O at the bottom and four H drawn, or CH3-C(=O)-H drawn with C=O double bond), then Y (HCl or H2O). Option 1 and 2 show N2+ and O-bar-CH3 together at the top with Cl at bottom; options 3 and 4 show N2+ Cl- at top and OCH3 at bottom.- (1)[figure: benzene ring with written at the top position and Cl at the bottom position], [figure: three-membered ring of two C and one O, each C bearing two H],
- (2)[figure: benzene ring with written at the top position and Cl at the bottom position], ,
- (3)[figure: benzene ring with at the top position and at the bottom position], [figure: three-membered ring of two C and one O, each C bearing two H],
- (4)[figure: benzene ring with at the top position and at the bottom position], , Official answer
Official answer
Option 4
NTA final key.
- Chapter
- Amines
- Topic
- Diazonium Salts
- Idea tested
- Reduction to Benzene via Ethanol