Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumpH of Strong and Weak Acids and BasesEasy2 minPYQ_2020

ChemistryEasysingle choice

An aqueous solution of hydrogen sulphide shows the equilibrium,
$H_{2} S ⇌ H^{+} + H S^{-}$
If dilute hydrochloric acid is added to an aqueous solution of hydrogen sulphide without any change in temperature, then

Options:

Answer:

Solution:

$K_{a}$ for $H_{2} S = \frac{[H^{+}] [H S^{-}]}{[H_{2} S]}$
Due to common ion effect an increase in $[H^{+}]$ will show a decrease in $[H S^{-}]$ as dissociation of $H_{2} S$ will decrease.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Ionic EquilibriumSubtopic:pH of Strong and Weak Acids and Bases

⏱ 2mℹ️ Source: PYQ_2020

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