KCET · Chemistry · Ionic Equilibrium
pH value of which one of the following is not equal to one?
- A \(0.1 \mathrm{M} \mathrm{HNO}_{3}\)
- B \(0.05 \mathrm{M} \mathrm{H}_{2} \mathrm{SO}_{4}\)
- C \(0.1 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH}\)
- D \(50 \mathrm{~cm}^{3}\) of \(0.4 \mathrm{M}\) \(\mathrm{HCl}+50 \mathrm{~cm}^{3}\) of \(0.2 \mathrm{M} \mathrm{NaOH}\)
Answer & Solution
Correct Answer
(C) \(0.1 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH}\)
Step-by-step Solution
Detailed explanation
Among the given, \(\mathrm{pH}\) of \(0.1 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH}\) is not equal to one as \(\mathrm{CH}_{3} \mathrm{COOH}\) is a weak acid, thus does not ionise completely.
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