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Among the following four compounds[2010] (i) phenol (ii) methylphenol (iii) meta-nitrophenol (iv) para-nitrophenol the acidity order is :
- a)ii > i > iii > iv
- b)iv > iii > i > ii
- c)iii > iv > i > ii
- d)i > iv > iii > ii
Correct answer is option 'B'. Can you explain this answer?
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Among the following four compounds[2010] (i) phenol (ii) methylphenol ...
(– I and – M effects, (only – I effect) both increase acidity)
(+ I effect of CH3 group decreases acidity)
∴ Correct choice : (b)
∴ Correct choice : (b)
Most Upvoted Answer
Among the following four compounds[2010] (i) phenol (ii) methylphenol ...
> iii > iv > i
Explanation: The acidity of phenols is determined by the electron-donating or withdrawing groups attached to the benzene ring. In this case, the presence of a methyl group in methylphenol (ii) increases the electron density on the phenol ring, making it more acidic than phenol (i). The presence of a nitro group in meta-nitrophenol (iii) and para-nitrophenol (iv) withdraws electron density from the phenol ring, making them more acidic than phenol (i) but less acidic than methylphenol (ii). The meta-nitrophenol (iii) is more acidic than para-nitrophenol (iv) due to the position of the nitro group relative to the hydroxyl group.
Explanation: The acidity of phenols is determined by the electron-donating or withdrawing groups attached to the benzene ring. In this case, the presence of a methyl group in methylphenol (ii) increases the electron density on the phenol ring, making it more acidic than phenol (i). The presence of a nitro group in meta-nitrophenol (iii) and para-nitrophenol (iv) withdraws electron density from the phenol ring, making them more acidic than phenol (i) but less acidic than methylphenol (ii). The meta-nitrophenol (iii) is more acidic than para-nitrophenol (iv) due to the position of the nitro group relative to the hydroxyl group.
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Among the following four compounds[2010] (i) phenol (ii) methylphenol (iii) meta-nitrophenol (iv) para-nitrophenol the acidity order is :a)ii > i > iii > ivb)iv > iii > i > iic)iii > iv > i > iid)i > iv > iii > iiCorrect answer is option 'B'. Can you explain this answer?
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Among the following four compounds[2010] (i) phenol (ii) methylphenol (iii) meta-nitrophenol (iv) para-nitrophenol the acidity order is :a)ii > i > iii > ivb)iv > iii > i > iic)iii > iv > i > iid)i > iv > iii > iiCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Among the following four compounds[2010] (i) phenol (ii) methylphenol (iii) meta-nitrophenol (iv) para-nitrophenol the acidity order is :a)ii > i > iii > ivb)iv > iii > i > iic)iii > iv > i > iid)i > iv > iii > iiCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Among the following four compounds[2010] (i) phenol (ii) methylphenol (iii) meta-nitrophenol (iv) para-nitrophenol the acidity order is :a)ii > i > iii > ivb)iv > iii > i > iic)iii > iv > i > iid)i > iv > iii > iiCorrect answer is option 'B'. Can you explain this answer?.
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