Waec Chemistry 2004 Past Questions and Answers

Question 36:

• WAEC 2004

The key factor to be considered in siting a chemical industry is

A. Favourable climatic conditions
B. The availability of space to store raw materials
C. Its nearness to other industrial establishments
D. Its nearness to the source of raw materials

Question 37:

• WAEC 2004

Which of the following reactions will be affected by change in pressure at equilibrium?

A. X_(g) + Y_(g) ⇌ W_(g) + Z_(g)
B. X_(g) + 2Y_(g) ⇌W_(g) + Z_(g)
C. 2X_(g) ⇌ W_(g) + Z_(g)
D. 2Y_(g) ⇌ W_(g) + Z_(g)

Question 38:

• WAEC 2004

WHICH OF THE FOLLOWING PETROLEUM FRACTIONS YIELDS VASELINE AND PARAFFIN WAX ON REDISTILLATION?

A. DIESEL OIL
B. LUBRICATION OIL
C. PETROL
D. KEROSENE

Question 39:

• WAEC 2004

What is the product Cx Hy in the following equation? C₁₀H₁₂ → C₈H₁₈ + CxHy

A. Butene
B. Octane
C. Ethene
D. Decane

Question 40:

• WAEC 2004

Which of the following is required in an experiment to determine the enthalpy of solution of anhydrous CuSO? l. Mass of the anhydrous CuSO ₄ II. Volume of water in which the CuSO₄ is dissolved lll. lnitial temperature of water lV. Final temperature of the solution

A. L and ll only
B. Lll and IV only
C. Ll, lll, and IV only
D. L, ll, lll, and IV only