Question

(a) Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below.

(a) Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. O HCl is a stronger acid than H2S because Cl is more electronegative than S. HF is a stronger acid than H20 because F is more electronegative than 0. HCIO4 is a stronger acid than HClO2 because it has more oxygens around its central atom. H3PO4 is a stronger acid than H3PO3 because it has more oxygens surrounding the central P atom. H2SO4 is a stronger acid than HS04. because it has more acidic H atoms. O HCl is a stronger acid than HF because Cl atoms are larger than F atoms.

Answer 1

Correct statements:

HCl is a stronger acid than H₂S because Cl is more electronegative than S (electronegativity increases the polarity of the bond which increases the acidity)

HF is a stronger acid than H2O because F is more electronegative than O (electronegativity increases the polarity of the bond which increases the acidity)

HClO4 is a stronger acid than HClO2 because it has more oxygen atoms around its central atom (oxygen is an electronegative element and thus more the oxygen attached to the Cl, more polar will be O-H bond and thus more acidic)

H2SO4 is a stronger acid than HSO4- because it has more acidic H atoms

HCl is a stronger acid than HF because Cl atoms are larger than F atoms (larger atoms make weaker bonds and more weak the bond more acidic the molecule will be)