Assuming standard condition, answer the following questions.?

Question

[yes no] Is Fe2+(aq) capable of reducing Sn2+(aq) to Sn metal?
[ yes no] Is Cr3+(aq) capable of oxidizing Fe2+(aq)?
[yes no] Is Fe2+(aq) capable of reducing Cr3+(aq) to Cr2+(aq)?
[yes no] Is Cr metal capable of reducing Fe2+(aq)?
[yes no] Is Ni2+(aq) capable of oxidizing H2(g)?
[yes no] Is H2(g) capable of reducing Ag+(aq)?

Answer 1

Write down the standard reduction potential of the couple to be reduced.

Write down the negative of the standard reduction potential of the couple to be oxidized.

Add them up.

Is the answer positive (yes/no)

The secret: electrochemistry is just thermodynamics in fancy dress, with E volts worth -nFE joules and positive E0 playing much the same role as negative DeltaG0.