question_answer

Which of the following reaction involves oxidation and reduction?

A)  \[NaBr+\text{ }HCl\xrightarrow{{}}\text{ }NaCl+\text{ }HBr\]

B)  \[HBr+AgN{{O}_{3}}\xrightarrow{{}}AgBr+HN{{O}_{3}}\]

C)  \[{{H}_{2}}+B{{r}_{2}}\xrightarrow{{}}2HBr\]

D)  \[N{{a}_{2}}O+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}N{{a}_{2}}S{{O}_{4}}+{{H}_{2}}O\]

Correct Answer: C

Solution :

                  Only this reaction involves oxidation and reduction.