6.Redox Reactions
Qno.1. Choose the most correct option. A. Oxidation numbers of Cl atoms marked as Clᵃ and Clᵇ in CaOCl₂ (bleaching powder) are Clᵃ / Ca \ O — Clᵇ a. zero in each b. -1 in Clᵃ and +1 in Clᵃ c. +1 in Clᵃ and -1 in Clᵇ d. 1 in each B. Which of the following is NOT an example of redox reaction? a. CuO + H₂ → Cu + H₂O b. Fe₂O₃ + 3CO₂ → 2Fe + 3CO₂ c. 2K + F₂ → 2KF d. BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl C. A compound contains atoms of three elements A, B and C. If the oxidation state of A is +2, B is +5 and that of C is -2, the compound is possibly represented by a. A₂(BC₃)₂ b. A₃(BC₄)₂ c. A₃(B₄C)₂ d. ABC₂ D. The coefficients p, q, r, s in the reaction p Cr₂O₇² ⁻ + q Fe²⁺ + H⁺ → r Cr³⁺ + s Fe³⁺ + H₂O respectively are: a. 1, 6, 2, 6 b. 6, 1, 2, 4 c. 1, 6, 2, 6 d. 1, 2, 4, 6 E . For the following redox reactions, find...