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

ID: 916161 • Letter: S

Question

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


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

B. PH3 is a stronger acid than H2S because P is larger than S.

C. HBr is a stronger acid than H2Se because Br is more electronegative than Se.

D. H2Se is a stronger acid than HBr because Se is larger than Br.

E. HNO3 is a stronger acid than HNO2 because it has more oxygens surrounding the central N atom.

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

Explanation / Answer

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

B. PH3 is a stronger acid than H2S because P is larger than S. FALSE

C. HBr is a stronger acid than H2Se because Br is more electronegative than Se. TRUE

D. H2Se is a stronger acid than HBr because Se is larger than Br. FALSE

E. HNO3 is a stronger acid than HNO2 because it has more oxygens surrounding the central N atom. TRUE

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

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