Acid and Bases pop Quiz

All Brønsted- Lowry acids

• a. are aqueous solutions.

• b. can act as Arrhenius acids.

• c. donate protons.

• d. All of the above

Which of the following substances is both a Brønsted-Lowry base and an Arrhenius base?

• a. NH3(s)

• b. NH3(aq)

• c. HCl(g)

• d. HCl(aq)

In the following reaction, which substance acts as a Brønsted-Lowry acid? - HCl + NH3 → NH4⁺ + Cl^-

• a. HCl

• b. NH3

• c. + NH4

• d. Cl–

Which of the following is a polyprotic acid?

• a. HCl

• b. H2SO4

• c. HNO3

• d. HF

Which of the following can act as a Lewis acid?

• a. NH3(aq)

• b. Cl– (aq)

• c. BF₄^- (aq )

• d. Ag+ (aq)

A Lewis acid

• a. is an anion.

• b. donates an electron pair to form a covalent bond.

• c. can be a substance that does not contain a hydrogen atom.

• d. All of the above

Which of the following substances can act as an Arrhenius base, a Brønsted-Lowry base, and a Lewis base?

• a. F– (aq)

• b. NH3(aq)

• c. H+ (aq)

• d. NaOH(aq)

What is the conjugate base of the hydronium ion, H3O+ ?

• a. OH–

• b. H+

• c. H2O

• d. H₃O₂⁺

The conjugate acid of the chloride ion, Cl– , is

• a. Cl2.

• b. H+

• c. HCl.

• d. ClO.

An amphoteric species is one that reacts at 25°C as a(n)

• a. acid only.

• b. base only.

• c. acid or base.

• d. None of the above