Q19 / 90 · JEE Main 2024 (09 Apr Shift 1) · Chemistry

For the given compounds, the correct order of increasing \(\mathrm{pK}_{\mathrm{a}}\) value : Figure
Choose the correct answer from the options given below :

  • Correct answer
    A
    \((\mathrm{B}) < (\mathrm{D}) < (\mathrm{C}) < (\mathrm{A}) < (\mathrm{E})\)
  • B
    \(\text { (D) } < \text { (E) } < \text { (C) } < \text { (B) } < \text { (A) }\)
  • C
    \(\text { (E) } < \text { (D) } < (\text { C }) < (\text { B }) < (\text { A })\)
  • D
    \(\text { (E) } < \text { (D) } < \text { (B) } < \text { (A) } < \text { (C) }\)

Solution

Acidic strength order :- $\mathrm{B}>\mathrm{D}>\mathrm{C}>\mathrm{A}>\mathrm{E}$ Correct $\mathrm{pKa}$ Order : $\text { B } < \text { D } < \text { C } < \text { A } < \text { E }$

Hence, the correct answer is option: 'A'.

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