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in electrolysis of Cr2(so4)3 solution using 2 ampere the mass of cathode increased 8g.how long was electrolysis conducted
here i think Cr shud not be discharged and H+ shud be discharged!!!!!!!!!
am i right????
but if it is so,how mass of cathode will increase
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6 Answers
1as the reduction potentials are Cr3+=-0.73 and H+=0
i think the one with higher reduction potential is reduced.
so , i think u r right, H+ is reduced at the cathode, but i'm not sure
1
1I forgot..
but kuch tha na NCERT main..
that in solution Cr3+ gives Cr + Cr2+..
dunno..
but may be,..
cuz of this...cathode increases..
(I may b wrong)
3i think its an example of chrome plating.so chromium ion shud gets deposited at the cathode.
3i think CrO3 shud be the main constituent in the chromium sulphate solution other than chromium sulphate.