MCQ
Which one has $pH$ $12$
- ✓$0.01\,M\,\,KOH$
- B$1\,N\,\,KOH\,\,ml$
- C$1\,N\,NaOH\,\,ml$
- D$3.0 \times {10^{ - 7}}\,M$
✓
Answer
Correct option: A.
$0.01\,M\,\,KOH$
(a) $[O{H^ - }] = {10^{ - 2}}$ $M$ ; $pOH = 2$
$pH + pOH = 14$; $pH = 14 - pOH$
$pH = 14 - 2 = 12$
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