POST UTME FUTO 2025 Chemistry | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 2.50 g sample of a compound containing only carbon and hydrogen is combusted in a bomb calorimeter. The heat of combustion is found to be - 2870 kJ. Calculate the empirical formula of the compound.
A. C2H4
B. C3H6
C. C4H8
D. C5H10
Question 2
The s\tandard electrode potential for the reaction: Zn(s) + 2Ag+(aq) → Zn2+(aq) + 2Ag(s) is +0.76 V. What is the s\tandard electrode potential for the reaction: Zn2+(aq) + 2e- → Zn(s)?
A. -0.76 V
B. -1.52 V
C. 0.76 V
D. 1.52 V
Question 3
Determine the pH of a 0.1 M solution of HCl.
A. 1
B. 2
C. 3
D. 4
Question 4
A polymer is formed by the condensation reaction between a diol and a diacid. The molecular weight of the polymer is 50,000 g/mol. If the molecular weight of the diol is 180 g/mol and the molecular weight of the diacid is 120 g/mol, what is the average degree of polymerization (DP) of the polymer?
A. 250
B. 200
C. 150
D. 100
Question 5
A 2.5 M solution of sulfuric acid (H2SO4) is titrated with 1.0 M sodium hydroxide (NaOH). If 25 mL of NaOH is required to reach the equivalence point, what is the concentration of the H2SO4 solution?
A. 0.5 M
B. 1.0 M
C. 2.0 M
D. 2.5 M
Question 6
A colloid is a mixture of two or more subs\tances in which one subs\tance is dispersed in another subs\tance. What is the name of the process by which the particles of a colloid are dispersed in a liquid?
A. Emulsification
B. Flocculation
C. Coagulation
D. Crystallization
Question 7
A gas is collected over water at a temperature of 25°C and a pressure of 1 atm. If the partial pressure of water vapor is 0.02 atm, what is the mole \fraction of the gas in the sample?
A. 0.98
B. 0.99
C. 0.995
D. 0.999
Question 8
A 1.0 M solution of sodium chloride (NaCl) is electrolyzed u\sing a platinum electrode. If 2.5 C of electricity is passed through the solution, what is the mass of chlorine gas (Cl2) produced?
A. 0.25 g
B. 0.50 g
C. 1.0 g
D. 2.0 g
Question 9
A 1.0 M solution of sodium hydroxide (NaOH) is titrated with 1.0 M hydrochloric acid (HCl). If 25 mL of HCl is required to reach the equivalence point, what is the concentration of the NaOH solution?
A. 0.5 M
B. 1.0 M
C. 1.5 M
D. 2.0 M
Question 10
A 1.0 M solution of HCl is mixed with a 1.0 M solution of NaOH. What is the pH of the resulting solution?
A. 7
B. 8
C. 9
D. 10
Question 11
A 2.50 g sample of a compound containing only carbon and hydrogen is combusted in a bomb calorimeter. The heat of combustion is found to be - 2870 kJ. Calculate the empirical formula of the compound.
A. C2H4
B. C3H6
C. C4H8
D. C5H10
Question 12
A 1.00 L sample of a gas at 27°C and 1.00 atm is compressed to 2.00 L at cons\tant temperature. Calculate the work done on the gas.
A. 2.00 J
B. 4.00 J
C. 6.00 J
D. 8.00 J
Question 13
A 2.0 M solution of sulfuric acid (H2SO4) is titrated with 1.0 M sodium hydroxide (NaOH). If 25 mL of NaOH is required to reach the equivalence point, what is the concentration of the H2SO4 solution?
A. 1.0 M
B. 1.5 M
C. 2.0 M
D. 2.5 M
Question 14
A 1.0 M solution of acetic acid (CH3COOH) is titrated with a 1.0 M solution of sodium hydroxide (NaOH). If 20 mL of NaOH is required to reach the equivalence point, what is the pH of the solution at the equivalence point?
A. 4
B. 7
C. 10
D. 14
Question 15
A sample of sulfur dioxide gas (SO2) occupies a volume of 3.00 L at a pressure of 2.00 atm and a temperature of 50°C. What is the number of moles of sulfur dioxide gas present?
A. 0.0150 mol
B. 0.0200 mol
C. 0.0250 mol
D. 0.0300 mol

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