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MARCH 2024 — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryMARCH 20241 Mark
MCQ
The $pH$ of $0.001 \ \ce{M HCl}$ solution is $.........$
  • A
    $1.0$
  • B
    $2.0$
  • ✓
    $3.0$
  • D
    $7.0$
✓

Answer

Correct option: C.
$3.0$
$pH =-\log _{10}\left[\ce{H_3O} ^{+}\right]$
$=-\log _{10}[0.001]$
$=-\log _{10}\left[10^{-3}\right]$
$=3.0$

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