Question 1

According to Arrhenius' theory, what makes a substance an acid?

Accepted Answer

It increases the concentration of H⁺ ions in water

Answer

It accepts protons.

Answer

It accepts electron pairs.

Answer

It donates hydroxide ions.

Question 2

How does Brønsted–Lowry define an acid?

Accepted Answer

A substance that donates protons (H⁺).

Answer

A substance that accepts electron pairs.

Answer

A substance that produces OH⁻ ions in water.

Answer

A substance that accepts protons.

Question 3

According to Arrhenius theory, a base increases the concentration of OH⁻ ions in water.

Accepted Answer

true

Answer

false

Question 4

Lewis theory can explain acid-base reactions that do not involve H⁺ ions.

Accepted Answer

true

Answer

false

Question 5

Lewis' theory focuses on the transfer of electron pairs.

Accepted Answer

true

Answer

false

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