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An example of redox reaction
Options
(a) AgNO₃ + NaCl → AgCl + NaNO₃
(b) CuSO₄ + 4NH₃ → Cu(NH₃)₄ SO₄
(c) H₂ + Cl₂ → 2HCl
(d) KNO₃ + NaCl → KCl + NaNO₃
Correct Answer:
H₂ + Cl₂ → 2HCl
Explanation:
H₂ + Cl₂ → 2HCl. H₂ (oxidation state = 0 ) changes to H⁺ (oxidation state = +1) and Cl₂ (oxidation state = 0) changes to Cl⁻ (oxidation state = -1). So H₂ has been oxidised and Cl₂ has been reduced, making this is redoxreaction.
Related Questions: - A secondary amine could be prepared readily from the starting material
- Which of the following statements about amorphous solids is incorrect
- Platinum, palladium and iridium are called noble metals because
- p-Nitrobromobenzene can be converted to p-nitroaniline by using NaNH₂.
- When a standard solution of NaOH is left in air for a few hours
Topics: Hydrogen and Redox Reactions
(174)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A secondary amine could be prepared readily from the starting material
- Which of the following statements about amorphous solids is incorrect
- Platinum, palladium and iridium are called noble metals because
- p-Nitrobromobenzene can be converted to p-nitroaniline by using NaNH₂.
- When a standard solution of NaOH is left in air for a few hours
Topics: Hydrogen and Redox Reactions (174)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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