Which one of the following reactions is a redox reaction-a CuSO4-4NH3- CuNH34-SO4b Na2SO4-BaCl2- BaSO4-2NaClc SO2-H2O- H2SO3d 2CuSO4-4KI- Cu2I2-2K2SO4-I2-

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Introduction to Oxidation and Reduction

Which one of ...

Question

Which one of the following reactions is a redox reaction?
(a) $C u S O_{4} + 4 N H_{3} \to C u (N H_{3})_{4}] S O_{4}$
(b) $N a_{2} S O_{4} + B a C l_{2} \to B a S O_{4} + 2 N a C l$
(c) $S O_{2} + H_{2} O \to H_{2} S O_{3}$
(d) $2 C u S O_{4} + 4 K I \to C u_{2} I_{2} + 2 K_{2} S O_{4} + I_{2}$ .

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2 C u S O_{4} + 4 K I \to C u_{2} I_{2} + 2 K_{2} S O_{4} + I_{2}

C u S O_{4}

(M w = 159.5 g

m o l^{- 1})

2 C u S O_{4} + 4 K I ⟶ C u_{2} I_{2} + 2 K_{2} S O_{4} + I_{2}

C u S O_{4}

N a H + H_{2} O \to N a O H + H_{2}

3 M g + N_{2} \to M g_{3} N_{2}

S n C l_{2} + B r_{2} \to S n C l_{2} . B r_{2}

2 C u S O_{4} + 4 K I \to C u_{2} I_{2} + K_{2} S O_{4} + I_{2}

N a_{2} S O_{4} + B a C l_{2} \to B a S O_{4} + 2 N a C l

C u S O_{4} + 4 K I \to 2 C u I + I_{2} + 2 K_{2} S O_{4}

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