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6.2. Equilibrium - II (icon Equilibrium) — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry6.2. Equilibrium - II (icon Equilibrium)1 Mark
MCQ
The $K_a$ of monobasic acid $A, B$ and $C$ are $10^{-6}, 10^{-8}$ and $10^{-10}$ respectively. The concentrations of $A, B$ and $C$ are respectively. $0.1\,M$, $0.01\, M$ and $0.001\, M$. Which of the following is correct for $pOH$ of $A, B$ and $C$ ?
  • A
    $pOH (A) < pOH (B) < pOH (C)$
  • ✓
    $pOH (A) > pOH (B) > pOH (C)$
  • C
    $pOH (A) = pOH (B) = pOH (C)$
  • D
    $pOH (C) < pOh (A) < pOH (B)$
✓

Answer

Correct option: B.
$pOH (A) > pOH (B) > pOH (C)$
b

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