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Ionic Equilibrium — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryIonic Equilibrium1 Mark
MCQ
The pH of $0.001 M$ NaOH will be ………….
  • A
    $3$
  • B
    $2$
  • ✓
    $11$
  • D
    $12$
✓

Answer

Correct option: C.
$11$
$(c)$ $11$
$0.001 M NaOH$ means $\left[ OH ^{-}\right] 0.001$.
$10^{-3} pOH =3$
$pH + pOH =14$
$pH =14-3=11$

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