POST UTME FUTA 2018 Chemistry | Objective

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Question 1
Determine the s\tandard enthalpy of formation of CaCO3(s) from the following data: ΔHf(CaO(s)) = -635.09 kJ/mol, ΔHf(CO2(g)) = -393.51 kJ/mol, ΔHf(C(s)) = 0 kJ/mol.
A. -1206.60 kJ/mol
B. -1206.19 kJ/mol
C. -1206.79 kJ/mol
D. -1206.99 kJ/mol
Question 2
A diagram of a titration setup is shown below. The burette contains a solution of sulfuric acid (H2SO4). The flask contains a solution of sodium hydroxide (NaOH). The initial volume of the NaOH solution is 25 mL. After the titration, the volume of the NaOH solution is 50 mL. What is the concentration of the H2SO4 solution?
A. 0.5 M
B. 1.0 M
C. 2.0 M
D. 4.0 M
Question 3
A solution of sodium hydroxide (NaOH) is mixed with a solution of hydrochloric acid (HCl). The resulting solution has a pH of 7. What is the concentration of the NaOH solution?
A. 0.1 M
B. 0.5 M
C. 1.0 M
D. 2.0 M
Question 4
Identify the type of isomerism exhibited by the following pair of compounds: CH3CH2CH2CH2CH3 and (CH3)2CHCH2CH3.
A. Structural isomerism
B. Stereoisomerism
C. Constitutional isomerism
D. Geometrical isomerism
Question 5
A metal M has a density of 7.9 g/cm3 and a molar mass of 120 g/mol. What is the volume of 2.5 mol of the metal?
A. 0.25 cm3
B. 0.50 cm3
C. 0.75 cm3
D. 1.00 cm3
Question 6
A gas at a pressure of 2 atm and a temperature of 300 K is allowed to expand to a volume of 10 L. What is the new pressure of the gas?
A. 0.2 atm
B. 0.5 atm
C. 1.0 atm
D. 2.0 atm
Question 7
A polymer has a molecular weight of 50,000 g/mol and a degree of polymerization of 200. What is the molar mass of the repeating unit?
A. 250 g/mol
B. 250.5 g/mol
C. 250.1 g/mol
D. 249.9 g/mol
Question 8
A solution of 0.100 M HCl is titrated with 0.100 M NaOH. If 25.0 cm3 of HCl is added to 50.0 cm3 of NaOH, what is the pH of the resulting solution?
A. 1.0
B. 2.0
C. 3.0
D. 4.0
Question 9
A sample of nitrogen gas occupies a volume of 2.5 L at a pressure of 1.5 atm. What is the pressure of the gas if the volume is reduced to 1.0 L?
A. 2.0 atm
B. 2.5 atm
C. 3.0 atm
D. 3.5 atm
Question 10
A solution of copper(II) sulfate (CuSO4) is electrolyzed u\sing a copper electrode. What is the product formed at the anode?
A. Cu
B. Cu2+
C. SO42-
D. H2O
Question 11
The reaction of sulfuric acid with sodium hydroxide is represented by the equation: H2SO4 + 2NaOH → Na2SO4 + 2H2O. If 25.0 cm3 of 0.500 M H2SO4 is added to 50.0 cm3 of 0.750 M NaOH, what is the limiting reac\tant?
A. H2SO4
B. NaOH
C. Neither
D. Both
Question 12
A diagram of a redox reaction is shown below. The reaction involves the oxidation of iron (Fe) to form iron(III) ions. What is the reducing agent in the reaction?
A. Fe
B. O2
C. H2O
D. OH-
Question 13
A solution of sodium hydroxide (NaOH) is mixed with a solution of hydrochloric acid (HCl). The resulting solution has a pH of 7. What is the concentration of the NaOH solution?
A. 0.1 M
B. 0.5 M
C. 1.0 M
D. 2.0 M
Question 14
The diagram below shows a circuit with a battery, a resistor, and a capacitor. If the capacitor is initially uncharged, what is the current in the circuit at time t = 0 s?
A. 0 A
B. 1 A
C. 2 A
D. 3 A
Question 15
A diagram of a titration setup is shown below. The burette contains a solution of sulfuric acid (H2SO4). The flask contains a solution of sodium hydroxide (NaOH). The initial volume of the NaOH solution is 25 mL. After the titration, the volume of the NaOH solution is 50 mL. What is the concentration of the H2SO4 solution?
A. 0.5 M
B. 1.0 M
C. 2.0 M
D. 4.0 M

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