Q. Which of the following is not a redox reaction?
A) $2Na + {Cl}_{2} \rightarrow 2NaCl$
B) $C + O_{2} \rightarrow {CO}_{2}$
C) ${AgNO}_{3} + NaCl \rightarrow AgCl + {NaNO}_{3}$
D) $Zn + H_{2}{SO}_{4} \rightarrow {ZnSO}_{4} + H_{2}$
Explanation
(c)
None of elements in reaction (c) undergoes a change in oxidation number, therefore reaction (c) is not a redox reaction
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It is a double decomposition reaction
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.