Igcse Model Questions Vol1 2025 Chemistry Question 19

Practice objective / multiple choice question 19 from the 2025 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Medium Difficulty
Question 19 IGCSE_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

In an electrolytic cell containing an aqueous solution of copper(II) sulfate, a constant current of 2.00 A is passed for 30 minutes. Assuming that copper ions are reduced at the cathode and water is oxidised at the anode, calculate (a) the mass of copper deposited on the cathode and (b) the volume of oxygen gas released at the anode at STP.

Answer Options

A. Copper deposited ≈ 1.35 g; oxygen evolved ≈ 0.18 L (at STP).
B. Copper deposited ≈ 0.95 g; oxygen evolved ≈ 0.30 L (at STP).
C. Copper deposited ≈ 0.80 g; oxygen evolved ≈ 0.25 L (at STP).
Correct Answer D. Copper deposited ≈ 1.19 g; oxygen evolved ≈ 0.21 L (at STP).
Correct Answer
D
Correct Option:
Copper deposited ≈ 1.19 g; oxygen evolved ≈ 0.21 L (at STP).

About This Question

This is Igcse Model Questions Vol1 2025 Chemistry Question 19. It is one of the objective questions from the 2025 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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