Q1 · CSIR-NET Chemistry, December 2016
Paper: CSIR-NET December 2016 · Subject: Inorganic Chemistry · Chapter: Acids and Bases · Topic: Acid and Bases – General · Marks: 2 · Difficulty: Medium
For the reaction, \[ \mathrm{HX(aq)} + \mathrm{H_2O(l)} \xleftrightarrow{\text{gives}} \mathrm{H_3O^+} + \mathrm{X^-} \]
the highest value of $[\mathrm{X^-}]$, when $\mathrm{X^-}$ is (a)$\mathrm{OCl}^{-}$
(b)$\mathrm{F^-}$
(c)$\mathrm{Cl}^{-}$
(d)$\mathrm{NO}_{2}{ }^{-}$
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
The strongest acid ionises most. HCl is a strong acid (fully ionised), while HOCl, HF and HNO₂ are weak, so [Cl⁻] is the highest.
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