Question

What happens when
(i)toluene is treated with conc.HNO3 and conc.H2SO4 at 293 K?
(ii)nitrobenzene is treated with conc.HNO3 and conc.H2SO4 at 363 K?

Answer 1

Answer:when toulene reacts with con HNO3 and con H2SO4

We know that CH3 group attached to benzene ring so it activate that to form -ve sign more at ortho and para position so the electrophile NO2+,attacks at Ortho or para position to give products ,,,in such that para product is stable (not always most of cases para stable,,,in some cases ortho stable due to intermolecular hydrogen bonding not in this case)

2nd one:- nitro group attached to benzene ring it deactivated the benzene ring forms-ve charge on meta products so at meta position nitration takes place

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