AP EAMCET · Chemistry · General Organic Chemistry
Arrange the following in increasing order of \(\mathrm{pK}_{\mathrm{a}}\) values
- A \(\mathrm{C} < \mathrm{B} < \mathrm{A} < \mathrm{D}\)
- B \(\mathrm{B} < \mathrm{D} < \mathrm{C} < \mathrm{A}\)
- C \(\mathrm{A} < \mathrm{D} < \mathrm{B} < \mathrm{C}\)
- D \(\mathrm{A} < \mathrm{B} < \mathrm{C} < \mathrm{D}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{A} < \mathrm{D} < \mathrm{B} < \mathrm{C}\)
Step-by-step Solution
Detailed explanation
Therefore, larger dissociation and stability of C.B. is governed by the I-effect of the p-substituent. Higher the dissociation of acids into its conjugate base, lower the \(\mathrm{pk}_{\mathrm{a}}\) values.
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