Post-UTME Chemistry 2017 Objective — Question 2
Question 2 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2017 Objective paper, with the correct answer and a full explanation.
Advertisement
Cu2+(aq) + 2e -> Cu(s), E = +0.34V; Zn2+(aq) + 2e -> Zn(s), E = -0.76V. From the equations above, it can be concluded that
- A. Cu can easily reduce Zn
- B. Zn can easily oxidize Cu
- C. Cu can easily oxidize Zn
- D. Zn can easily reduce any metalCorrect
Explanation
Zinc, being more reactive (more negative electrode potential) than most common metals, readily acts as a reducing agent towards other metal ions.
Advertisement
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.