8.6 Molecular Structure of Acid and Base

Which of the following is a weak acid among hydrogen halides?

• HBr

• HCl

• HF

• HI

What does a stronger acid imply about its conjugate base?

• Weaker base

• Stronger base

• No change in base strength

• Neutral base

Which factor increases the acid strength according to the rules discussed?

• Fewer hydrogen atoms

• Lower electronegativity

• Higher atomic size

• More oxygen atoms

What is the effect of higher electronegativity on the acid strength?

• Varies unpredictably

• Decreases strength

• Increases strength

• No effect

Which acid is stronger based on the number of oxygen atoms present?

• HClO

• HClO2

• HClO3

• HClO4