Jamb Chemistry 2018 Past Questions and Answers

Question 61:

• JAMB 2018

From the graph above, it may be concluded that

A. AgNO\(_3\) is probably not soluble at 1100
B. NaCl is insoluble in water
C. Pb(NO\(_3\))\(_2\) is more soluble than KCIO\(_3\)
D. The solubility of KCIO\(_3\) exceeds that of NaCl at all temperature

Question 62:

• JAMB 2018

2SO\(_2\) \(_{(g) }\)+ O\(_2\) \(_{(g) }\) ↔ 2SO\(_3\)\(_{(g) }\) ΔH = -395.7kJmol\(^{-1}\)
In the equation, an increase in temperature will shift the equilibrium position to the

A. Left and equilibrium constant decreases
B. Left and equilibrium constant increases
C. Right and equilibrium constant increases
D. Right and equilibrium constant decreases

Question 63:

• JAMB 2018

The end products of burning a candle in the atmosphere are water and

A. Carbon (II) oxide
B. Sulphur (IV) oxide
C. Carbon (IV) oxide
D. Sulphur (VI) oxide

Question 64:

• JAMB 2018

The collision theory explains reaction rates in terms of

A. Size of the product
B. Frequency of collision of the reactants
C. Size of reactant
D. Frequency of collision of the products

Question 65:

• JAMB 2018

The presence of ammonia gas in a desiccator can exclusively be removed by

A. Phosphorus (V) oxide
B. Fused calcium chloride
C. Calcium chloride
D. Concentrated tetraoxosulphate (VI) acid