POST UTME AL-HIKMAH UNIVERSITY 2017 Chemistry | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A metal (X) reacts with oxygen to form a basic oxide. The reaction is: 4X + 3O2 → 2X2O3. If 2.5 g of X is heated in air, what is the volume of oxygen required at STP?
A. 1.25 L
B. 2.5 L
C. 3.75 L
D. 5 L
Question 2
A 25.0 mL sample of 0.100 M HCl is mixed with 25.0 mL of 0.100 M NaOH. What is the pH of the resulting solution?
A. 1.00
B. 2.00
C. 3.00
D. 4.00
Question 3
A 10.0 mL sample of 0.100 M H2SO4 is mixed with 10.0 mL of 0.100 M Ba(OH)2. What is the pH of the resulting solution?
A. 1.00
B. 2.00
C. 3.00
D. 4.00
Question 4
A solution contains 0.050 M NaCl. What is the concentration of Cl- ions in the solution?
A. 0.025 M
B. 0.050 M
C. 0.075 M
D. 0.100 M
Question 5
Determine the number of moles of glu\cose (C6H12O6) that can be produced from 2.5 moles of carbon monoxide (CO) in the following reaction: 2CO + 3H2O → C6H12O6 + 2H2O.
A. 1.25 moles
B. 2.5 moles
C. 3.75 moles
D. 5 moles

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