How to differentiate between the cathode and anode in these kind of questions where single compartment cell is used where salt bridge isn't mentioned too and since we have every part that is the metal ag the salt agcl and chloride ion on HCl would we treat the cathodic part as metal insoluble electrode i got this confusion as the compartments aren't mentioned so do we just take the chloride here from HCl to full fill conditions for metal insoluble electrode ?
#Single compartment cell
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In th cell representation
Anode is in left
And cathode at right
Always
And for single compartment
This particular cell we know ag has +ve reduction
So based off that
We have to get
I get that but when salt bridge isn't mentioned and how can we decide HCl goes in the cathode or anode as it changes the answer of question
Hydrogen stays zero always
So whether the other reaction is feasible or not will decide
HCl will be part of cathode u mean then
No
Anode I mean
Say for example we have some reaction which is non spontaneous
Isnt that going to be data based
Then hydrogen will be cathode
It will be yh par kuch yaad karna padta hai common
And for a spontaneous it will be anode to give a +ve cell
Advance always gives values
It does yh
So u mean HCl is part of both anode cathode reaction as it's a single compartment ?
Then only it makes sense
Hit and trial you mean
Like once cathode would be metal metal ion and once metal insoluble
Here the hydrogen electrodes will act as cathode
Ye sab honestly mat yaad karo
And say in another one we have ag+ to ag
Here the reaction is spontaneous
So the hydrogen will act as anoden
It is used in advanced 😭
😭😭
Well then
Wht I am saying basically here is
Deciding wheather hydrogen is anode or cathode will depend on what is the other substance with it
Like in this question
It is ag
Which goes to ag from ag+
Which is a spontaneous
So yaha par hydrogen anode ho jaayega
To give a +ve cell
Yup right there it's data based we leave the question right there in jee
😭
😭
I get your point
Yyp I know for zn ag cu
But humare usulo ke khilaaf hai data yaad rakhna class mai badi debate hoti hai
Cu
Data nhi
Bas +ve ya -ve
See if you want to you can
Baki it's upto you
Yeah that toh I know complete series and from where it is positive and negative but it's considered bad to not go by exact info given in question like questions in advanced are framed such you won't need extra info from anywhere
Hn to that much is enough
And don't you use the general electrodes like metal insoluble and so on
I personally don't
To me all of them are same
Then how come would you write expression for Gibbs free energy for certain electrodes
You would miss out on the solubility product terms and formation constant terms
Or is it not used that much in NEET ?
From looking at cell
Bro me iat bro
Idk me and chemistry are something
Oh my bad
It's alright
I would say trust this always
Yeah ik but we are used to remember through salt bridge and single compartment aren't exactly the part of jee but I get it that you can solve it through standard potential data idea
Any ways thanks
Eh honestly it's upto you how you learn them
In the end both gives u answer
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