Home > Community > Why is phenol first treated with sulphuric acid to form phenol-2,4-disulphonic acid before treating with concentrated HNO3 in the formation of picric acid?

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+ Nitric acid

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Khurram Shezad

Why is phenol first treated with sulphuric acid to form phenol-2,4-disulphonic acid before treating with concentrated HNO3 in the formation of picric acid?

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Why is phenol first treated with sulphuric acid to form phenol-2,4-disulphonic acid before treating with concentrated HNO3 in the formation of picric acid?

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