POST UTME UNILAG 2025 Chemistry | Objective

Are you preparing for POST UTME UNILAG exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2025 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 in water at 25°C.

A. 1

B. 2

C. 3

Correct D. 4

Correct Answer: D

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Question 2

A 2.5 L flask contains 0.15 mol of N2 and 0.20 mol of O2 at 25°C. What is the partial pressure of N2?

Correct A. 0.5 atm

B. 1.0 atm

C. 1.5 atm

D. 2.0 atm

Correct Answer: A

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Question 3

The diagram below shows a titration setup. Identify the part labeled A.

Correct A. A burette

B. A beaker

C. A pipette

D. A flask

Correct Answer: A

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Question 4

A 2.0 L flask contains 0.10 mol of CO2 at 25°C. What is the mole \fraction of CO2?

A. 0.05

Correct B. 0.10

C. 0.15

D. 0.20

Correct Answer: B

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Question 5

The diagram below shows a reaction setup. Identify the product formed.

Correct A. H2O

B. CO2

C. CH4

D. NH3

Correct Answer: A

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