Arrange the following ions in the correct ord | vedclass

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(B) To determine the acidity,we look at the stability of the conjugate base or the electron-withdrawing nature of the substituents attached to the aci

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$i < iii < ii < iv$

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(B) To determine the acidity,we look at the stability of the conjugate base or the electron-withdrawing nature of the substituents attached to the acidic proton.$1$. $HSO_3F$ (Fluorosulfonic acid) is a superacid,making it the strongest acid among the given options.$2$. $H_3O^+$ (Hydronium ion) is a strong acid with a $pK_a$ of approximately $-1.7$.$3$. $HSO_4^-$ (Bisulfate ion) has a $pK_a$ of approximately $1.99$.$4$. $HCO_3^-$ (Bicarbonate ion) is a weak acid with a $pK_a$ of approximately $10.3$.Comparing these values,the order of acidity is: $HCO_3^- < HSO_4^- < H_3O^+ < HSO_3F$,which corresponds to $(i) < (iii) < (ii) < (iv)$.

Arrange the following ions in the correct order of their acidity: $(i) \, HCO_3^-, (ii) \, H_3O^+, (iii) \, HSO_4^-, (iv) \, HSO_3F$.

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