Apentix/AP Chemistry/Unit 8: Acids and Bases/Question
AP Chemistrymediummcq1 pt

Which factor explains why HClO₄ is a stronger acid than HClO?

A.More oxygens withdraw electron density and stabilize the conjugate base
B.Chlorine is more electronegative in HClO
C.HClO₄ has fewer hydrogens
D.HClO₄ is more dilute

Explanation

Core Concept

Perchlorate spreads its negative charge over four oxygens, stabilizing ClO₄⁻ and favoring dissociation. Oxyacid strength grows with oxygen count.

Correct Answer

AMore oxygens withdraw electron density and stabilize the conjugate base

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