Jamb Chemistry Past Questions and Answers

Question 1611:

• JAMB 2011

A suitable solvent for iodine and nephthalene is

A. Carbon (IV) sulphide
B. Ethanol
C. Water
D. Benzene

Question 1612:

• JAMB 2011

Which of the following noble gases is commonly found in the atmosphere?

A. Xenon
B. Neon
C. Helium
D. Argon

Question 1613:

• JAMB 2011

N₂O_4(g) ↔ 2NO_2(g) ΔH = +ve
In the reaction above, an increase in temperature will

A. Increase the value of the equilibrium constant
B. Decreases the value of the equilibrium constant
C. Increase in the reactant production
D. Shift the equilibrium to the left

Question 1614:

• JAMB 2011

CH₃COOH_(aq) + OH^-_(aq) ↔ CH₃COO^-_(aq) + H₂O_(l)
In the reaction above ,CH₃COO^-_(aq) is

A. Conjugate base
B. Acid
C. Base
D. Conjugate acid

Question 1615:

• JAMB 2011

How many cations will be produced from a solution of potassium aluminium tetraoxosulphate (VI)?

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