Which of the following is(are) oxidation-reduction reactions?
I.PCl₃ + Cl₂ $\rightarrow$ PCl₅
II.Cu + 2AgNO₃ $\rightarrow$ Cu(NO₃) ₂ + 2Ag
III.CO₂ + 2LiOH $\rightarrow$ Li₂CO₃ + H₂O
IV.FeCl₂ + 2NaOH $\rightarrow$ Fe(OH) ₂ + 2NaCl

Question

Which of the following is(are) oxidation-reduction reactions?
I.PCl₃ + Cl₂

\rightarrow

PCl₅
II.Cu + 2AgNO₃

\rightarrow

Cu(NO₃) ₂ + 2Ag
III.CO₂ + 2LiOH

\rightarrow

Li₂CO₃ + H₂O
IV.FeCl₂ + 2NaOH

\rightarrow

Fe(OH) ₂ + 2NaCl

Quizplus · Accepted Answer

In option I, PCl5 is being reduced to PCl3 and Cl2 is being oxidized to Cl2F10. This is an oxidation-reduction reaction. In option II, Cu is being oxidized to Cu(NO₃)12+ and AgNO3 is being reduced to Ag. This is also an oxidation-reduction reaction. In option III, there is no change in the oxidation states of the elements, so it is not an oxidation-reduction reaction. In option IV, FeCl2 is being neutralized by NaOH to form Fe(OH)2 and NaCl. This is not an oxidation-reduction reaction.

Which of the Following Is(are) Oxidation-Reduction Reactions? I →\rightarrow→ PCl5 II

Which of the Following Is(are) Oxidation-Reduction Reactions?
I $\rightarrow$ PCl₅
II