WAEC Chemistry 2021 Objective — Question 25

Question 25 of 50 from the West African Examinations Council (WAEC) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

25. Consider the diagram below and use it to answer questions 25 and 26 (electrochemical cell with crystals A and B, A(aq)3+ and B(aq)2+). Which of the following cell notations represent the diagram?

A. B2+/B//A/A3+
B. A3+/A//B/B2+
C. B/B2+//A/A3+
D. A/A3+//B2+/BCorrect

Explanation

By convention, the anode (oxidation) half-cell is written on the left and the cathode (reduction) half-cell on the right: A/A3+//B2+/B.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Chemistry 2021 Objective More Chemistry past papers