Jamb Chemistry Past Questions and Answers

Question 1621:

• JAMB 2011

CH_4(g) + Cl_2(g) → CH₃ Cl_(s) + HCl_(g)
The major factor that influence the rate of the reaction above is

A. Catalyst
B. Temperature
C. Concentration
D. Light

Question 1622:

• JAMB 2011

The condition required for corrosion to take place is the presence of

A. Water and carbon (IV) oxide
B. Water, carbon (IV) oxide and oxygen
C. Oxygen and carbon (IV) oxide
D. Water and oxygen

Question 1623:

• JAMB 2011

The diagram above best illustrates the effect of decrease in

A. Concentration
B. Temperature
C. Surface area
D. Pressure

Question 1624:

• JAMB 2011

MnO^-_4(aq) + Y + 5Fe²⁺_(aq) → Mn²⁺_(aq) + 5Fe²⁺_(aq) + 4H₂O^(l)
In the equation above, Y is

A. 5H⁺_(aq)
B. 4H⁺_(aq)
C. 10H⁺_(aq)
D. 8H⁺_(aq)

Question 1625:

• JAMB 2011

Given that M is the mass of a substance deposited during electrolysis and Q is the quantity of electricity consumed, then Faraday's first law can be written as
[Electrochemical equivalent]

A. M = E/Q
B. M = EQ
C. M = Q/E
D. M = E/2Q