Why is HS04(aq) a weaker acid than H2SO4? Choose one: A. Because HSO4-(aq) only

Question

Why is HS04(aq) a weaker acid than H2SO4? Choose one: A. Because HSO4-(aq) only dissociates to a small extent compared to H2SO4(aq), it is therefore a weak acid and a weak electrolyte. B. Because HSO4-(aq) dissociates to a larger extent than H2S04(aq), it is therefore a weak acid and a strong electrolyte. C. It is not true; HSO4-(aq) is a stronger acid. D. Because HSO4-(aq) only dissociates to a small extent compared to H2SO4(aq), it is therefore a weak acid and a strong electrolyte. . E. Because HS04-(aq) dissociates to a larger extent than H2SO4(aq), it is therefore a weak acid and a weak electrolyte.

Explanation / Answer

Option A, since HSO4- is the conjugate base of strong acid H2SO4 and formed by the loose of one proton and it is weak base and acts as weak electrolyte. Hence it undergoes partially disassociation, hence weak acid.  

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