Jamb Chemistry 1992 Past Questions and Answers

Question 16:

• JAMB 1992

On which of the following is the solubility of a gaseous substance dependent? I. Nature of solvent II. Nature of solute III. Temperature IV. Pressure

A. I, II, III and IV
B. I and II only
C. II only
D. I, III and IV only

Question 17:

• JAMB 1992

An emulsion paint consists of ?

A. Gas or liquid particles dispersed in liguid
B. Liquid particles dispersed in liquid
C. Solid particles dispersed in liquid
D. Solid particles dispersed in solid

Question 18:

• JAMB 1992

A sample of orange juice is found to have a pH of 3.80. What is he concentration of the hydroxide ion in the juice?

A. 1.6 x 10^-4
B. 6.3 x 10^-11
C. 6.3 x 10^-4
D. 1.6 x 10^-11

Question 19:

• JAMB 1992

Arrange HCI, CH₃COOH, C₆H₅CH₃ in order of increasing conductivity.

A. HCI, CH₃COOH, C₆H₅CH₃
B. C₆H₅CH₃, HCI, CH₃COOH
C. C₆H₅CH₃, CH₃COOH, HCI
D. CH₃COOH, C₆H₅CH₃, HCI

Question 20:

• JAMB 1992

How many grams of H₂SO₄ are necessary for the preparation of 0.175 dm³ of M 6.00 M H₂SO₄?
(S = 32.06, O = 16.00 H = 1.00)

A. 206.0 g
B. 103.0 g
C. 98.1 g
D. 51.5 g