Gce Model Questions Vol1 2020 Chemistry Question 9

Practice objective / multiple choice question 9 from the 2020 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Medium Difficulty
Question 9 GCE_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

In acidic solution the redox reaction \(\ce{MnO4^- + Fe^{2+} -> Mn^{2+} + Fe^{3+}}\) occurs. If 0.025 mol of \(\ce{MnO4^-}\) reacts completely with excess \(\ce{Fe^{2+}}\), calculate the volume of \(\ce{O2}\) (at STP) that could be liberated if the same total number of electrons were instead used to reduce \(\ce{O2}\) to water via \(\ce{O2 + 4 H+ + 4 e- -> 2 H2O}\).

Answer Options

A. 0.35 L
B. 1.05 L
Correct Answer C. 0.70 L
D. 0.14 L
Correct Answer
C
Correct Option:
0.70 L

About This Question

This is Gce Model Questions Vol1 2020 Chemistry Question 9. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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