POST UTME FUTA 2023 Chemistry | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 2.0 L flask contains 1.0 mol of CO2(g) at 30°C. Calculate the pressure of the gas u\sing the ideal gas law.
A. 1.01 x 10^5 Pa
B. 2.02 x 10^5 Pa
C. 3.03 x 10^5 Pa
D. 4.04 x 10^5 Pa
Question 2
The reaction of cyclohexane with bromine in the presence of light produces a mixture of 1,2-dibromocyclohexane and 1,4-dibromocyclohexane. What is the major product of this reaction?
A. 1,2-dibromocyclohexane
B. 1,4-dibromocyclohexane
C. cis-1,2-dibromocyclohexane
D. trans-1,4-dibromocyclohexane
Question 3
The s\tandard entropy of formation of H2O is ______ J/mol·K.
A. 69.95
B. 69.90
C. 69.85
D. 69.80
Question 4
A 50.0 mL sample of 0.100 M NaOH is mixed with a 50.0 mL sample of 0.100 M HCl. Calculate the pH of the resulting solution.
A. 1.0
B. 2.0
C. 3.0
D. 4.0
Question 5
A solution of NaCl is prepared by dissolving 35.5 g of NaCl in 250 mL of water. Calculate the molarity of the solution.
A. 0.1 M
B. 0.5 M
C. 1 M
D. 2 M
Question 6
The s\tandard enthalpy of formation of H2O is ______ kJ/mol.
A. -285.8
B. -285.5
C. -286.0
D. -286.5
Question 7
The reaction 2Al(s) + Fe2O3(s) → Al2O3(s) + 2Fe(s) is an example of a ______ reaction.
A. synthesis
B. decomposition
C. \single displacement
D. double displacement
Question 8
A 25 mL sample of a solution containing 0.5 M NaCl is diluted to 100 mL. What is the new concentration of the solution?
A. 0.05 M
B. 0.1 M
C. 0.25 M
D. 0.5 M
Question 9
A 0.5 M solution of NaOH is mixed with a 0.5 M solution of HCl. Calculate the pH of the resulting solution.
A. 1.0
B. 2.0
C. 3.0
D. 4.0
Question 10
A 25.0 mL sample of 0.100 M HCl is mixed with a 25.0 mL sample of 0.100 M NaOH. Calculate the pH of the resulting solution.
A. 1.0
B. 2.0
C. 3.0
D. 4.0
Question 11
A polymer has a molecular weight of 100,000 g/mol and a degree of polymerization of 500. Calculate the molar mass of the repeating unit.
A. 200 g/mol
B. 500 g/mol
C. 1000 g/mol
D. 2000 g/mol
Question 12
The reaction between hydrogen peroxide and manganese dioxide is a classic example of a ______ reaction.
A. oxidation
B. reduction
C. neutralization
D. precipitation
Question 13
A 25.0 mL sample of a solution containing 0.100 M HCl is titrated with 0.100 M NaOH. Calculate the volume of NaOH required to reach the equivalence point.
A. 12.5 mL
B. 25.0 mL
C. 37.5 mL
D. 50.0 mL
Question 14
A 50 mL sample of a solution containing 0.2 M H2SO4 is mixed with a 50 mL sample of a solution containing 0.2 M NaOH. What is the concentration of the resulting solution?
A. 0.1 M
B. 0.2 M
C. 0.3 M
D. 0.4 M
Question 15
A 2.50 L flask contains 0.500 mol of an ideal gas at a temperature of 298 K. Calculate the pressure of the gas u\sing the ideal gas law.
A. 1.01 x 10^2 Pa
B. 2.02 x 10^2 Pa
C. 3.03 x 10^2 Pa
D. 4.04 x 10^2 Pa

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