POST UTME FUTO 2022 Chemistry | Objective

Are you preparing for POST UTME FUTO exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2022 Chemistry (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
Determine the pH of a 0.1 M solution of HCl.
A. 1
B. 2
C. 3
Correct D. 4

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A sample of a metal (M) reacts with HCl to produce a gas. The gas is collected over water and found to have a partial pressure of 0.75 atm. If the vapor pressure of water at 25°C is 0.031 atm, calculate the mole \fraction of the gas.
Correct A. 0.1
B. 0.2
C. 0.3
D. 0.4

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
A 2.5 g sample of a polymer is dissolved in 100 mL of a solvent. If the density of the solution is 1.2 g/mL, calculate the molar mass of the polymer.
A. 1000
B. 2000
Correct C. 3000
D. 4000

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A 1.0 M solution of NaOH is titrated with a 1.0 M solution of HCl. If 25 mL of the HCl solution is required to reach the equivalence point, calculate the number of moles of NaOH.
A. 0.05
Correct B. 0.10
C. 0.15
D. 0.20

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
A sample of a non-metal (X) reacts with oxygen to produce a gas. The gas is collected over water and found to have a partial pressure of 0.50 atm. If the vapor pressure of water at 25°C is 0.031 atm, calculate the mole \fraction of the gas.
A. 0.2
B. 0.3
C. 0.4
Correct D. 0.5

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
The reaction of potassium permanganate with hydrogen peroxide in acidic medium is a classic example of a redox reaction. The balanced equation for this reaction is: \( 2KMnO_4 + 3H_2O_2 + H_2SO_4 \rightarrow K_2SO_4 + 2MnSO_4 + 4H_2O + 3O_2 \). What is the oxidation state of manganese in the product \( MnSO_4 \)?
A. 0
Correct B. +2
C. -2
D. +4

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
A solution of ( 0.1 , M ) \( Na_2SO_4 \) is electrolyzed u\sing a platinum electrode. The electrolysis is carried out at ( 298 , K ) and ( 1 , atm ). What is the mass of \( O_2 \) gas evolved at the anode after ( 2 ) hours?
A. 0.12 g
Correct B. 0.24 g
C. 0.36 g
D. 0.48 g

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
The half-life of a radioactive subs\tance is ( 10 ) years. If the initial amount of the subs\tance is ( 100 ) g, what is the amount of the subs\tance remaining after ( 20 ) years?
Correct A. 12.5 g
B. 25 g
C. 50 g
D. 100 g

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
A gas at \( 20 , ^circ C \) and ( 1 , atm ) occupies a volume of ( 2 ) L. What is the pressure of the gas at \( 50 , ^circ C \) if the volume is reduced to ( 1 ) L?
A. 2 atm
Correct B. 4 atm
C. 6 atm
D. 8 atm

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
A solution of ( 0.1 , M ) \( H_2SO_4 \) is mixed with a solution of ( 0.2 , M ) ( NaOH ). What is the concentration of the resulting solution?
A. 0.1 M
B. 0.2 M
Correct C. 0.3 M
D. 0.4 M

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub:
Chat with Support