Select all of the correct statements about the relative acid strengths of pairs

Question

Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S. HC2O4- is a stronger acid than H2C2O4 because it has more charge (is more unstable). NH3 is a stronger acid than HF because N is larger than F. PH3 is a stronger acid than NH3 because P atoms are larger than N atoms. H2SO4 is a stronger acid than HClO4 because S is larger than Cl. H2S is a stronger acid than H2Se because S is more electronegative than Se.

Explanation / Answer

HCl is a stronger acid than H2S because Cl is more electronegative than S

PH3 is a stronger acid than NH3 because P atoms are larger than N atoms.

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