Question

Which of the following is not an example of redox reaction?

• A. $CuO + H_{2} \rightarrow Cu + H_{2}O$
• B. $Fe_{2}O_{3} + 3CO \rightarrow 2Fe + 3CO_{2}$
• C. $2jK + F_{2} \rightarrow 2KF$
• D. $BaCl_{2} + H_{2}SO_{4} \rightarrow BaSO_{4} + 2HCl$

Answer 1

Answer: (D)

$BaCl_{2} + H_{2}SO_{4} \rightarrow BaSO_{4} + 2HCl$

Answer 2

: $BaCl_{2} + H_{2}SO_{4} \rightarrow BaSO_{4} + 2HCl$ is not a redox reaction as it does not involve any change in oxidation number. It is example of double decomposition reaction.