11 grade chemistry others> Phenol, when it first reacts with concent...
Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives(A) 2,4,6-trinitrobenzene(B) o-nitrophenol(C) p-nitrophenol(D) nitrobenzene
1 AnswersWhen phenol reacts with concentrated sulfuric acid and then with concentrated nitric acid, it undergoes a two-step process known as the nitration of phenol. The reaction proceeds as follows:
Step 1: Phenol reacts with concentrated sulfuric acid to form a phenol sulfonic acid.
C6H5OH + H2SO4 → C6H5OH2SO4
Step 2: The phenol sulfonic acid then reacts with concentrated nitric acid, leading to the formation of 2,4,6-trinitrophenol, also known as picric acid.
C6H5OH2SO4 + HNO3 → C6H2(NO2)3OH + H2SO4
Therefore, the correct answer is (A) 2,4,6-trinitrophenol or picric acid.
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