Identify conjugate acid-Base pair in the following reaction. $\mathrm{HCl}_{(\mathrm{aq})}+\mathrm{H}_2…

Identify conjugate acid-Base pair in the following reaction. $\mathrm{HCl}_{(\mathrm{aq})}+\mathrm{H}_2 \mathrm{O}_{(t)} \rightleftharpoons \mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}$
  1. $\mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+}$and $\mathrm{Cl}_{(\mathrm{aq})}^{-}$
  2. $\mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+}$and $\mathrm{H}_2 \mathrm{O}_{(l)}$
  3. $\mathrm{HCl}_{(\mathrm{aq})}$ and $\mathrm{H}_2 \mathrm{O}_{(l)}$
  4. $\mathrm{Cl}_{(\mathrm{aq})}^{-}$and $\mathrm{H}_2 \mathrm{O}_{(l)}$

Solution

Conjugate Acid - Base pairs in given reaction, (1) $\mathrm{HCl}_{(\mathrm{aq})}$ and $\mathrm{Cl}_{(\mathrm{aq})}^{-}$ (2) $\mathrm{H}_2 \mathrm{O}_{(\ell)}$ and $\mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+}$

Asked in: MHT CET 2021 (23 Sep Shift 1)

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