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Wa alykumussalam.Assalamoalikum
for anyone confused about electrode potential (sign) see its simple just use concept instead of formulas see if u reverse the equation OBVIOUSLY sign of the electrode potential changes if you removing an electron instead of adding Will electrode potential remain same?? no
-so first see which half cell reaction has a higher potential that will gaining electron (reduction) keep its question forward with the same +potential
-now reverse the other cell equation as if one is reducing its ganing electron where does the electron come from? from the other cell which is oxidising so reverse the sign for this other question as ur reversing it equation (oxiding)
now add the 2 values as one is reducing the other is oxidising we have to see which one is more like potential provided by the oxidising of that electron is enough for the reducing process to accept that electron in order that reaction happens
I dare you write ur name in 2 secs
jk
Thanks a lot though Jazak Allahu Khair!!!
(Nibz bhai )