Acids, bases and salts - Jamb Chemistry Past Questions and Answers

Question 21:

• JAMB 1982

An acid is said to be weak if?

A. Its ions are so completely dissociated that they easily drift apart
B. The acid is not corrosive
C. The acid has low specific gravity
D. Its ions move very slowly when in solution
E. Its ions are incompletely dissociated

Question 22:

• JAMB 1982

An acid is said to be weak if?

A. Its ions are so completely dissociated that they easily drift apart
B. The acid is not corrosive
C. The acid has low specific gravity
D. Its ions move very slowly when in solution
E. Its ions are incompletely dissociated

Question 23:

• JAMB 1982

An amphoteric oxide is an?

A. Amorphous oxide of a metal
B. Amorphous oxide of a non-mental
C. Oxide that is insoluble in water
D. Oxide that behaves both as a base as well as an acid
E. Oxide that loses its oxygen on sublimation

Question 24:

• JAMB 1982

Which of the following is a neutralization reaction? Addition of

A. Nitric acid to hydrochloric acid
B. Nitric acid to sulphuric acid
C. Nitric acid to distilled water
D. Nitric acid to sodium hydroxide
E. Sodium chloride to distilled water

Question 25:

• JAMB 1983

Solutions X, Y, and Z have PH values 3.0. 5. 0 and 9. 0 respectively. Which of the following statements is correct?

A. All the solutions are acidic
B. All the solutions are basic
C. Y and Z are more acidic than water
D. Y is more acidic than X
E. Z is the least acidic