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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: - Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.
- In a buffer solution containing equal concentration of B⁻ and HB,
- The screening effect of d-electrons is
- The s-block element used as a catalyst in the manufacture of Buna-S rubber is
- Nitrobenzene, on nitration,produces
Topics: Hydrogen and Redox Reactions
(174)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.
- In a buffer solution containing equal concentration of B⁻ and HB,
- The screening effect of d-electrons is
- The s-block element used as a catalyst in the manufacture of Buna-S rubber is
- Nitrobenzene, on nitration,produces
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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