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Which of the following reactions represents a redox reaction?a) CaCO3 → CaO + CO2b) 2Mg + O2 → 2MgOc) NaOH + HCl → NaCl + H2Od) H2 + Cl2 → 2HClCorrect answer is option 'B'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Which of the following reactions represents a redox reaction?a) CaCO3 → CaO + CO2b) 2Mg + O2 → 2MgOc) NaOH + HCl → NaCl + H2Od) H2 + Cl2 → 2HClCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following reactions represents a redox reaction?a) CaCO3 → CaO + CO2b) 2Mg + O2 → 2MgOc) NaOH + HCl → NaCl + H2Od) H2 + Cl2 → 2HClCorrect answer is option 'B'. Can you explain this answer?.

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