Formation of ZnSO4 from blue copper sulphate solution is a spontaneous _.
Correct answer: D. Redox Reaction
- A. Oxidation reaction
- B. Addition Reaction
- C. Reduction Reaction
- D. Redox Reaction
Explanation
The correct answer is a Redox Reaction because it involves both oxidation and reduction processes. Zinc undergoes oxidation as it loses electrons: Zn → Zn2+ + 2e-, while copper ions (Cu2+) are reduced by gaining electrons: Cu2+ + 2e- → Cu. This electron transfer between zinc and copper ions characterizes the redox nature of the reaction. Options A, B, and C describe processes that are part of redox reactions but do not fully encompass both aspects (oxidation and reduction) involved in this specific reaction.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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