Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?
Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?
(i) Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc. HNO3.
(ii) Acetic anyhdride/pyridine followed by conc. H2SO4 + conc. HNO3.
(iii) Dil. HCl followed by reaction with conc. H2SO4 + conc. HNO3.
(iv) Reaction with conc. HNO3 + conc.H2SO4.
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(i), (ii)
(i) Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc. HNO3.
(ii) Acetic anyhdride/pyridine followed by conc. H2SO4 + conc. HNO3.
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