When phenol is heated with concentrated nitric acid the product is________________?
Correct answer: A. Picric acid
- A. Picric acid
- B. o-nitrophenol
- C. 1 3 5 -trinitro benzene
- D. p-nitrophenol
Explanation
Concentrated nitric acid introduces three nitro groups into phenol, producing 2,4,6-trinitrophenol, commonly called picric acid. Students may choose 1,3,5-trinitrobenzene because they focus on three nitro substitutions but overlook that the hydroxyl group remains attached to the ring.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Phenols
Phenols contain a hydroxyl group directly bonded to an aromatic ring, making them more acidic than alcohols because the phenoxide ion is resonance-stabilised. Reactions include ionisation with bases, electrophilic substitution, bromination, nitration and oxidation, with attention to the difference between phenols and aliphatic alcohols.
Practise Alcohols and Phenols
535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Phenols questions
Which one of the following is most acidic?
Which of the following is more acidic in nature?
Which of the following best explains why phenol reacts with aqueous NaOH, but alcohols do not?
The given dissociation constant (Ka) value 1.3 x 10^-10 is of_________________?
The hydrogenation of phenol in the presence of Ni and heat gives_________________?
Phenol was isolated by Runge from________________?