A. Atomic No. of zinc is higher than that of Copper
B. Zinc has higher reduction potential than Copper
C. Zinc is more Soluble
D. Zinc has smaller reduction potential than copper
Correct Answer: B. Zinc has higher reduction potential than Copper
Detail about MCQs
Zinc displaces copper from its solution because:
B. Zinc has a higher reduction potential than copper.
In a displacement reaction, a more reactive metal can displace a less reactive metal from its compound. Zinc is more reactive than copper, and it has a higher reduction potential, which means it has a greater tendency to undergo oxidation (lose electrons) compared to copper. As a result, in a reaction between zinc and copper ions in solution, zinc will displace copper ions and form zinc ions while copper is reduced and deposited as solid copper.