Exploring Acids and Bases: Arrhenius, Bronsted-Lowry, and Lewis Concepts

What does an Arrhenius acid do in water?

• Decreases OH- concentration

• Increases H+ concentration

• Produces ammonia

• Reduces hydronium ions

Which compound is an example of an Arrhenius base?

• H2O

• NaOH

• NH3

• HCL

What is a key limitation of the Arrhenius acid-base definition?

• It does not require the presence of H+ or OH- ions

• It includes all possible acids and bases

• It only applies to reactions in water

• It applies universally to all solvents

According to the Bronsted-Lowry concept, what does a base do?

• Produces a hydronium ion

• Accepts a proton

• Decreases OH- concentration

• Donates a proton

Which reaction demonstrates water acting as a Bronsted-Lowry acid?

• Water reacting with sodium hydroxide

• Water dissociating into H+ and OH-

• Water accepting a proton from ammonia

• Water donating a proton to ammonia

How does water act under acidic conditions according to the Bronsted-Lowry concept?

• As a Lewis acid by accepting electrons

• As a neutral molecule

• As an acid by donating a proton

• As a base by accepting a proton

What is a Lewis acid?

• A substance that donates a pair of electrons

• A substance that accepts a pair of electrons

• A substance that increases OH- concentration

• A substance that donates a proton

Which of the following is a characteristic of a Lewis base?

• It donates a proton

• It accepts a proton

• It donates a pair of electrons

• It accepts a pair of electrons

What type of bond is formed in a Lewis acid-base reaction?

• Metallic bond

• Ionic bond

• Covalent bond

• Coordinate covalent bond

What role does BF3 play in a Lewis acid-base reaction?

• Lewis acid

• Bronsted-Lowry base

• Bronsted-Lowry acid

• Lewis base