Question

IN AN AQUEOUS SOLUTION HYDROGEN WILL NOT REDUCE .A]Ag+ .B]Cr+3 .c]Cu+1 .d]Fe+3

Answer 1

no one welcomes me and answer my question

Answer 2

anyone want a medal!

Answer 3

think about the standard reduction potentials

Answer 4

yeh right Cr+3 does bcoz it is on the top of electrochemical series and others r on the bottom of the list....but the reason?

Answer 5

bcoz chromium has more tenedency to be in the from of ions Cr+3 rather than in atomic state like Cr compared to H2 getting into H+ ions :)