Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

Which of the following is a redox reaction?
Options
A NH₃ + HCl → NH₄Cl
B HCl + NaOH → NaCl + H₂O
C AgNO₃ + NaCl → AgCl + NaNO₃
D Zn + CuSO₄ → ZnSO₄ + Cu
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

In option D, Zn is oxidized (0 to +2) and Cu²⁺ is reduced (+2 to 0). The other options are acid-base or precipitation reactions with no change in oxidation states.

Hint

Look for a reaction where oxidation states change.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1690 of 1872
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