Question: When N,N-dimethylaniline is treated with bromine, ortho and para products are observed. Yet, when N,Ndimethylaniline is treated with a mixture of nitric and sulfuric acid,

When N,N-dimethylaniline is treated with bromine, ortho and para products are observed. Yet, when N,Ndimethylaniline is treated with a mixture of nitric and sulfuric acid, only the meta product is observed. Explain these curious results.

Br Br2 Br N. HNO, H,SO, `NO2

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