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Use the cell notation to answer the question: Cr(s) | Cr3+(aq) || Br–(aq) | Br2(g) |...

Use the cell notation to answer the question:

Cr(s) | Cr3+(aq) || Br–(aq) | Br2(g) | Pt(s)

What is the reducing agent?

Group of answer choices

Br2(g)

Cr3+(aq)

Pt(s)

Cr(s)

Br–(aq)

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Answer #1

Cr(s)\rightarrowCr3+ + 3e-

Br- (aq)\rightarrow1/2 Br2 (g) + 1e-

in the given cell representation cr acts as anode br- acts as cathode

so oxidation of cr will take place and will acts as reducing agent

cr(s) acts as reducing agent

here pt acts as inert supporting electrode

hope it will help you

thank you

have a nice day :)

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