(a) Select all of the correct statements about the relative acid strengths of pa

Question

(a) 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.

H2SO4 is a stronger acid than H2SeO4 because S is more electronegative than Se

HIO is a stronger acid than HIO4 because it has fewer oxygens surrounding the central I atom.

HBrO2 is a stronger acid than HBrO3 because it has fewer oxygens surrounding the central Br atom.

H3PO3 is a stronger acid than H3PO4 because it has fewer oxygens surrounding the central P atom.

H2PO4- is a stronger acid than H3PO4 because it has more charge (is more unstable).

Explanation / Answer

HIO is a stronger acid than HIO4 because it has fewer oxygens surrounding the central I atom.

H2PO4- is a stronger acid than H3PO4 because it has more charge (is more unstable).

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