Question

Which equation represents a redox reaction?

A. HCI + LiOH
-
LiCl + H20
B. AgNO3 + LICI
AgCl + LINO3
C. HNO3 + KOH - KCl + H20
D. 2NaBr + Cl2
-
2NaCl + Br2
SUBI

Answer 1

D. 2NaBr + Cl2

Answer 2

D.
`2NaBr + Cl_2\rightarrow 2NaCl + Br_2`

Step-by-step explanation:

Hello!

In this case, for the given set of chemical reactions, it is possible to infer that D. is a categorized as redox due to the following:

Since both chlorine and bromine remain as diatomic gases, their oxidation states in such a form is 0, but as anions with lithium cations they have a charge of - according to the following reaction and half-reactions:

`2NaBr + Cl_2\rightarrow 2NaCl + Br_2`

`Cl_2^0+2e^-\rightarrow 2Cl ^-\\\\2Br^- \rightarrow Br_2^0+2e^-`

Unlike the other reactions whereas no change in the oxidation states is evidenced.