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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
$pH$ of $HCl\,({10^{ - 12}}M)$ is
  • A
    $12$
  • B
    $ - 12$
  • ✓
    $ \approx 7$
  • D
    $14$
✓

Answer

Correct option: C.
$ \approx 7$
(c) As the solution is acidic $pH < 7$. This is because $[{H^ + }]$ from ${H_2}O\,\,[{10^{ - 7}}]$ cannot be neglected in comparison to ${10^{ - 12}}\,M$.

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