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Equilibrium — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryEquilibrium1 Mark
MCQ
The solubility product of a sparingly soluble salt $AB$ at room temperature is $1.21 \times 10^{-6},$ its molar solubility is :
  • A
    $1.21 \times 100M.$
  • B
    $1.1 \times 10^{-4}M.$
  • ✓
    $1.1 \times 10^{-3}M.$
  • D
    None of these.
✓

Answer

Correct option: C.
$1.1 \times 10^{-3}M.$
$\text{S}=\sqrt{\text{K}_{\text{sp}}}$
$=\sqrt{1.21\times10^{-6}}$
$=1.1\times10^{-3}\text{M.}$

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