Neco 2025 Chemistry Question 32

Practice objective / multiple choice question 32 from the 2025 Neco Chemistry examination.

Neco 2025 Chemistry Objective / Multiple Choice Medium Difficulty

Question 32 NECO • 2025 • CHEMISTRY • objective

A galvanic cell is assembled with a zinc electrode immersed in a 0.010 M Zn^{2+} solution and a copper electrode immersed in a Cu^{2+} solution of unknown concentration. At 25 °C the cell emf is measured to be 1.05 V. Given the standard reduction potentials \(E^{\circ}(\text{Zn}^{2+}/\text{Zn}) = -0.76\ \text{V}\) and \(E^{\circ}(\text{Cu}^{2+}/\text{Cu}) = +0.34\ \text{V}\), calculate the concentration of Cu^{2+} in the solution.

Correct Answer A. 2.0×10⁻⁴ M

B. 2.0×10⁻⁵ M

C. 1.0×10⁻⁴ M

D. 2.0×10⁻³ M

Correct Answer

Correct Option:

2.0×10⁻⁴ M

This is Neco 2025 Chemistry Question 32. It is one of the objective questions from the 2025 Neco Chemistry examination.

Difficulty level: Medium .

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