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

Question 141:

• JAMB 2012

Which of the following will produce a solution with pH less than 7 at equivalent point?

A. HNO ₃ +NaOH
B. H ₂SO ₄ + KOH
C. HC +Mg (OH) ₂
D. HNO ₃ + KOH

Question 142:

• JAMB 2012

The number of hydroxonium ions produced by one molecule of an acid in aqueous solution is its

A. Basicity
B. Acid strength
C. PH
D. Concentration

Question 143:

• JAMB 2012

During a titration experiment, 0.05 moles of carbon (lV) oxide is liberated. What is the volume of gas liberated?

A. 22.40 dm ³
B. 11.20 dm ³
C. 2.24 dm ³
D. 1.12 dm ³

Question 144:

• JAMB 2013

Three drops of a 1.0 mol dm^-3 solution of HCl was added to 20 cm³ of a solution of pH6.4. The pH of the resulting solution will be

A. Close to that of pure water
B. Less than 6.4
C. Greater than 6.4
D. Unaltered

Question 145:

• JAMB 2013

Which of the following substances is not a salt?

A. Aluminium oxide
B. Sodium hydrogentrioxosulphate (V)
C. Sodium trioxocarbonate (V)
D. Zinc chloride