Jamb Chemistry Past Questions and Answers

Question 1756:

• JAMB 2014

The basicity of CH₃COOH is

A. 4
B. 1
C. 2
D. 3

Question 1757:

• JAMB 2014

The colour of litmus in a neutral medium is

A. Purple
B. Pink
C. Yellow
D. Orange

Question 1758:

• JAMB 2014

The mathematical expression of PH is

A. Log ₁₀[OH^-]
B. Log ₁₀1/[H ₃ O⁺]
C. Log ₁₀[H ₃ O⁺]
D. Log ₁₀1/[OH ^-]

Question 1759:

• JAMB 2014

Which of the following salts will turn blue litmus red?

A. Sodium tetrahydroxozincate (ll)
B. Potassium hydrogentetraoxosulphate (lV)
C. Sodium trioxocarbonate (lV)
D. Zinc chloride hydroxide

Question 1760:

• JAMB 2014

Zn _(s) + CuSO ₄(aq) → ZnSO ₄(aq) + Cu _(s)
In the reaction above, the oxidation number of the reducing agent changes from

A. 0 to + 4
B. 0 to + 2
C. + 1 to + 2
D. + 1 to + 3