Chap 2

1. Which of the following statements is a correct definition for a Brønsted-Lowry acid?

• A) Proton acceptor

• B) Electron pair donor

• C) Electron pair acceptor

• D) Proton donor

2. Which of the following statements about a Brønsted-Lowry base is true?

• A) The net charge may be zero, positive, or negative.

• B) All Brønsted-Lowry bases contain a lone pair of electrons or a  bond.

• C) All Brønsted-Lowry bases contain a proton.

• D) The net charge may be zero or positive.

• A) I, II

• B) I, III

• C) II, IV

• D) I, IV

4. Which of the following species cannot act as both a Brønsted-Lowry acid and base?

• A) HCO3-

• B) HSO4-

• C) HO-

• D) H2PO4

5. Which of the following species is not a Brønsted-Lowry base?

• A) BF3

• B) NH3

• C) H2O

• D) PO43

6. Which of the following statements about Brønsted-Lowry acids and bases is true?

• A) Loss of a proton from a base forms its conjugate acid.

• B) Loss of a proton from an acid forms its conjugate base.

• C) Gain of a proton by an acid forms its conjugate base.

• D) Brønsted-Lowry acid-base reactions always result in the transfer of a proton from a base to an acid.

7. Which of the following species is the conjugate base of methanol, CH3OH?

• A) CH3OH2+

• B) CH3O-

• C) CH3-

• D) CH4

8. Which of the following species is the conjugate base of the hydronium ion, H3O+?

• A) H3O

• B) H2O-

• C) H2O

• D) HO

9. Which of the following species is the conjugate acid of ammonia, NH3?

• A) H4N

• B) H3N+

• C) H2N-

• D) H4N+

• A) I

• B) II

• C) III

• D) IV