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Indian Navy 10+2 B.Tech Cadet Redox Reactions — practice questions

Explore 30 free Redox Reactions questions in Indian Navy 10+2 B.Tech Cadet Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Redox Reactions questions and exercises with answers

Showing questions 1–30 of 30.

As per your syllabus, in 2Na(s) + H₂(g) → 2NaH(s), the role of hydrogen is which?Read the answer and worked solution →As per your syllabus, MnO₂ is best written as which formula?Read the answer and worked solution →As per your syllabus, the reaction CuSO₄(aq) + Zn(s) → ZnSO₄(aq) + Cu(s) is classified as which type?Read the answer and worked solution →As per your syllabus, eqn 7.40, the reaction 2 H₂O + 2 F₂ → 4 HF + O₂ shows which species being oxidised?Read the answer and worked solution →As per your syllabus, the balanced ionic equation for Cr₂O₇²⁻ + SO₃²⁻ → Cr³⁺ + SO₄²⁻ in acid solution uses how many H⁺ ions on the reactant side?Read the answer and worked solution →As per your syllabus, for a BASIC medium, oxygen balance is achieved by adding which species?Read the answer and worked solution →Match each scientist to their contributionRead the answer and worked solution →Ionic or covalent?Read the answer and worked solution →Complete the driver of bond formationRead the answer and worked solution →Single, double and triple bondsRead the answer and worked solution →True or false: Lewis structuresRead the answer and worked solution →Complete the definition of resonanceRead the answer and worked solution →Tap every bond parameter the chapter namesRead the answer and worked solution →True or false: ionic solidsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Bonded pair or lone pair?Read the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Order the reasoning: why resonance is neededRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →True or false: what bond parameters affectRead the answer and worked solution →Bond parameters in useRead the answer and worked solution →Which parameter answers this?Read the answer and worked solution →True or false: resonanceRead the answer and worked solution →Order the steps: draw a Lewis structureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reason: structureRead the answer and worked solution →Flip and pair: parameter with what it measuresRead the answer and worked solution →

Worked practice questions

As per your syllabus, in 2Na(s) + H₂(g) → 2NaH(s), the role of hydrogen is which?

  1. Both
  2. Reduced
  3. Unchanged
  4. Oxidised
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Correct answer: B. Reduced

syllabus Problem 7.2: NaH is Na⁺H⁻; H goes 0 → −1 (gains e⁻) ⇒ reduced. Na is oxidised.

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As per your syllabus, MnO₂ is best written as which formula?

  1. Mn(IV)O₂
  2. Mn(VII)O₂
  3. Mn(III)O₂
  4. Mn(II)O₂
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Correct answer: A. Mn(IV)O₂

syllabus Problem 7.3: each O = −2 ⇒ Mn = +4 ⇒ Mn(IV)O₂.

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As per your syllabus, the reaction CuSO₄(aq) + Zn(s) → ZnSO₄(aq) + Cu(s) is classified as which type?

  1. Combination
  2. Non-metal displacement
  3. Metal displacement
  4. Disproportionation
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Correct answer: C. Metal displacement

Your syllabus: metal Zn displaces Cu from CuSO₄. Used in metallurgy.

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