POST UTME FUTA 2025 Chemistry | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The diagram below shows a titration setup. What is the purpose of the burette?
A. To measure the volume of the acid
B. To measure the volume of the base
C. To mix the acid and base
D. To measure the pH of the solution
Question 2
A 2.00 L sample of a gas at 50°C and 2.00 atm is collected over water at 25°C. If the vapor pressure of water at 25°C is 0.0313 atm, what is the partial pressure of the gas?
A. 1.97 atm
B. 1.98 atm
C. 1.99 atm
D. 2.00 atm
Question 3
The reaction of nitrogen dioxide with water is represented by the equation: 3NO2 + H2O → 2HNO3 + NO. If 2.5 g of NO2 is reacted with excess water, calculate the number of moles of HNO3 produced.
A. 0.25 mol
B. 0.5 mol
C. 0.75 mol
D. 1.0 mol
Question 4
A sample of a non-metallic oxide, MO, has a mass of 2.5 g and a volume of 1.5 mL. If the molar mass of MO is 80 g/mol, what is the number of moles of MO present?
A. 0.03125
B. 0.0625
C. 0.125
D. 0.25
Question 5
A 0.1 M solution of a weak acid HA is titrated with 0.1 M NaOH. If 20 mL of NaOH is required to reach the equivalence point, what is the value of the acid dissociation cons\tant Ka?
A. 1.0 x 10^-5
B. 1.0 x 10^-6
C. 1.0 x 10^-7
D. 1.0 x 10^-8
Question 6
A 0.500 L sample of a gas at 25°C and 1.00 atm is collected over water at 25°C. If the vapor pressure of water at 25°C is 0.0313 atm, what is the partial pressure of the gas?
A. 0.968 atm
B. 0.980 atm
C. 0.992 atm
D. 1.00 atm
Question 7
A 0.1 M solution of NaOH is prepared by dissolving 0.1 g of NaOH in 100 mL of water. What is the pOH of the solution?
A. 1
B. 2
C. 3
D. 4
Question 8
A solution of a strong base B is 0.2 M. If 40 mL of this solution is diluted to 200 mL, what is the new concentration of the base?
A. 0.04 M
B. 0.08 M
C. 0.12 M
D. 0.16 M
Question 9
A sample of water (H2O) has a mass of 50.0 g. If the density of water is 1.00 g/mL, what is the volume of the sample in liters?
A. 0.0500 L
B. 0.100 L
C. 0.500 L
D. 1.00 L
Question 10
A mixture of 2.50 g of NaCl and 1.50 g of KCl is dissolved in 100 mL of water. Calculate the molarity of the solution.
A. 0.05 M
B. 0.10 M
C. 0.15 M
D. 0.20 M
Question 11
The s\tandard enthalpy of formation of CO2(g) is -393.5 kJ/mol. Calculate the s\tandard enthalpy of formation of H2O(l) from the following reaction: H2(g) + 1/2 O2(g) → H2O(l).
A. -285.8 kJ/mol
B. -393.5 kJ/mol
C. -483.2 kJ/mol
D. -572.9 kJ/mol
Question 12
A sample of a non-metallic oxide, MO, has a mass of 4.0 g and a volume of 2.5 mL. If the molar mass of MO is 100 g/mol, what is the number of moles of MO present?
A. 0.04
B. 0.08
C. 0.12
D. 0.16
Question 13
A sample of a metal oxide, MO, has a mass of 3.5 g and a volume of 2.0 mL. If the molar mass of MO is 120 g/mol, what is the number of moles of MO present?
A. 0.02917
B. 0.05833
C. 0.11667
D. 0.23333
Question 14
A solution of a strong acid HA is 0.1 M. If 20 mL of this solution is diluted to 100 mL, what is the new concentration of the acid?
A. 0.02 M
B. 0.04 M
C. 0.06 M
D. 0.08 M
Question 15
A sample of a hydrocarbon has a density of 0.800 g/mL and a molecular weight of 42.0 g/mol. If 1.00 L of the hydrocarbon is burned in a combustion reaction, what is the volume of O2 consumed?
A. 2.00 L
B. 4.00 L
C. 6.00 L
D. 8.00 L

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