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Which of the following is a redox reaction? (2019)

Practice Questions

1 question
Q1
Which of the following is a redox reaction? (2019)
  1. 2H2 + O2 → 2H2O
  2. NaCl → Na + Cl2
  3. H2 + Cl2 → 2HCl
  4. CaCO3 → CaO + CO2

Questions & Step-by-step Solutions

1 item
Q
Q: Which of the following is a redox reaction? (2019)
Solution: In the reaction 2H2 + O2 → 2H2O, hydrogen is oxidized and oxygen is reduced, making it a redox reaction.
Steps: 0

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