MCQ
For the given compounds, the correct order of increasing $\mathrm{pK}_{\mathrm{a}}$ value:
  • A
    $(\text { E })<\text { (D) }<\text { (C) }<\text { (B) }<\text { (A) }$
  • B
    $(\mathrm{D})<(\mathrm{E})<(\mathrm{C})<\text { (B) }<\text { (A) }$
  • C
    $(\text { E })<\text { (D) }<\text { (B) }<\text { (A) }<\text { (C) }$
  • $\text { (B) }<\text { (D) }<\text { (A) }<\text { (C) }<\text { (E) }$

Answer

Correct option: D.
$\text { (B) }<\text { (D) }<\text { (A) }<\text { (C) }<\text { (E) }$
d
Acidic strength order :-

$\mathrm{B}>\mathrm{D}>\mathrm{C}>\mathrm{A}>\mathrm{E}$

Correct $\mathrm{pKa}$ Order :

$\text { B }<\text { D }<\text { C }<\text { A }<\text { E }$

All options are incorrect.

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