POST UTME FUTA 2019 Chemistry | Objective

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Question 1
The reaction of sulfur dioxide with sodium hydroxide in the presence of heat produces a mixture of sodium sulfite and water. What is the major product of this reaction?
A. sodium sulfite
B. water
C. sulfur dioxide
D. sodium hydroxide
Question 2
A 1.0 M solution of H2SO4 is mixed with a 1.0 M solution of NaOH. What is the resulting pH?
A. 1
B. 2
C. 3
D. 4
Question 3
A 250 mL sample of 0.1 M hydrochloric acid is titrated with 0.2 M sodium hydroxide. Calculate the volume of sodium hydroxide required to reach the equivalence point.
A. 125 mL
B. 150 mL
C. 175 mL
D. 200 mL
Question 4
The reaction of carbon monoxide with hydrogen in the presence of a catalyst produces a mixture of methanol and water. What is the major product of this reaction?
A. methanol
B. water
C. carbon monoxide
D. hydrogen
Question 5
In a reaction between zinc metal and copper(II) sulfate solution, 2.5 g of zinc metal reacts with 10 mL of 0.1 M copper(II) sulfate solution. Calculate the number of moles of copper(II) ions oxidized.
A. 0.025 mol
B. 0.05 mol
C. 0.075 mol
D. 0.1 mol
Question 6
A solution contains 0.1 M NaOH and 0.2 M HCl. What is the pH of the solution?
A. 1
B. 2
C. 3
D. 4
Question 7
The diagram below shows a chemical apparatus setup. Identify the part labeled B.
A. Test Tube
B. Burette
C. Erlenmeyer Flask
D. Conical Flask
Question 8
The reaction of sodium nitrite with acetic acid in the presence of sulfuric acid produces a mixture of nitrous acid and acetic anhydride. What is the major product of this reaction?
A. nitrous acid
B. acetic anhydride
C. nitric acid
D. nitrogen gas
Question 9
A 1.5 L sample of a gas at 27°C and 1.5 atm is compressed to 0.5 L at cons\tant temperature. Calculate the final pressure of the gas.
A. 3.6 atm
B. 4.2 atm
C. 5.4 atm
D. 6.3 atm
Question 10
A solution of sodium thiosulfate \( Na_2S_2O_3 \) is titrated with a solution of iodine \( I_2 \). The reaction is as follows: I_2 + 2Na_2S_2O_3 → 2NaI + Na_2S_4O_6. If 25 mL of 0.1 M I_2 is titrated with 20 mL of 0.2 M Na_2S_2O_3, what is the concentration of the iodine solution?
A. 0.05 M
B. 0.1 M
C. 0.15 M
D. 0.2 M
Question 11
Determine the rate cons\tant (k) for the reaction: 2NO(g) + O2(g) → 2NO2(g), given that the initial concentrations of NO and O2 are 0.1 M and 0.2 M, respectively, and the rate of reaction is 0.05 M/s after 10 minutes.
A. \( k = \frac{2.303}{t} \log \frac{[NO]_0 [O_2]_0}{[NO_2]_t} \)
B. \( k = \frac{2.303}{t} \log \frac{[NO_2]_t}{[NO]_0 [O_2]_0} \)
C. \( k = \frac{2.303}{t} \log \frac{[NO]_0 [O_2]_0}{[NO_2]_t} \)
D. \( k = \frac{2.303}{t} \log \frac{[NO_2]_t}{[NO]_0 [O_2]_0} \)
Question 12
Calculate the s\tandard enthalpy of formation of CO2(g) from the following data: ΔH°f(CO2(g)) = -393.5 kJ/mol, ΔH°f(C) = 0 kJ/mol, ΔH°f(O2(g)) = 0 kJ/mol.
A. -393.5 kJ/mol
B. -393.5 kJ/mol + 0 kJ/mol
C. -393.5 kJ/mol + 0.5 kJ/mol
D. -393.5 kJ/mol + 0.5 kJ/mol + 0 kJ/mol
Question 13
A 2.0 L flask contains 0.5 mol of an ideal gas at a temperature of 300 K. If the gas is heated to 400 K, what is the new volume of the gas, assuming the pressure remains cons\tant?
A. 1.5 L
B. 2.0 L
C. 2.5 L
D. 3.0 L
Question 14
What is the major product of the reaction between ethene and HCl?
A. 1-chloroethane
B. 2-chloroethane
C. 1,2-dichloroethane
D. 1,1-dichloroethane
Question 15
At 298 K, the rate cons\tant of a reaction is 2.5 × 10^\( -3 \) s^\( -1 \). What is the value of the rate cons\tant at 318 K, assuming the activation energy is 50 kJ/mol?
A. 1.3 × 10^\( -3 \) s^\( -1 \)
B. 2.5 × 10^\( -3 \) s^\( -1 \)
C. 4.2 × 10^\( -3 \) s^\( -1 \)
D. 6.1 × 10^\( -3 \) s^\( -1 \)

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