TS EAMCET · Chemistry · General Organic Chemistry
Arrange the following phenols in decreasing order of their \(\mathrm{pK}_{\mathrm{a}}\)
- A D > B > C > A
- B A > C > B > D
- C A > C > D > B
- D B > D > C > A
Answer & Solution
Correct Answer
(B) A > C > B > D
Step-by-step Solution
Detailed explanation
Acidity \(\propto \frac{1}{\mathrm{P}_{\mathrm{ka}}} \propto-\) Ieffect The correct order of \(\mathrm{P}_{\mathrm{ka}}\) is Phenol \(>\) meta-nitrophenol \(>\) ortho-nitrophenol > para-nitrophenol.
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