I
iTeachChem•9mo ago
Cleo

d and f block

what's the logic behind doing this ques?
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15 Replies
Cleo
CleoOP•9mo ago
Q 31
iTeachChem Helper
iTeachChem Helper•9mo ago
@Dexter
iTeachChem Helper
iTeachChem Helper•9mo ago
Note for OP
+solved @user to close the thread when your doubt is solved. Mention the user who helped you solve the doubt. This will be added to their stats.
iTeachChem
iTeachChem•9mo ago
Figure out electronic config to start with? ground state vs ions
Cleo
CleoOP•9mo ago
I did, but fe and cr both have 4 unpaired electrons, how do i pick the more stable one from the two?
iTeachChem
iTeachChem•9mo ago
So there are two ways to look at it. M/M2+ potential OR M3+/M2+ potential actually just gotta see data. Hard to do from theory. the easy way out is that M2+ will be the most stable Mn2+
Cleo
CleoOP•9mo ago
ohh I see, I don't remember the exact data but should I be memorising it? all i remember is that cu has a positive M/M2+ and the first 3 elements have a negative M3+/M2+
iTeachChem
iTeachChem•9mo ago
See here you can figure out by the extreemes ie manganese and generally, anything in ncert is fair game for neet or jee main one can just choose to skip the q too 😄 but mad theory qs are more or less rank differentiators top 500 odd ranks me
Cleo
CleoOP•9mo ago
ohhhh I see, thank you!
Aditya
Aditya•9mo ago
Thermal decomposition of AgNO3 produces two paramagnetic gases. The total no. of electrons present in the antibonding molecular orbitals of the gas that has the higher no. of unpaired electrons is:-
seksosterone
seksosterone•9mo ago
hey this a intext question in d & f ncert. I think cr3+ would be more stable than fe3+ due to half filled t2g of cr3+ , even though fe3+ has d5 extra stable configuration.
Dragon Slayer
Dragon Slayer•9mo ago
ye
Cleo
CleoOP•9mo ago
Hey thanks
iTeachChem
iTeachChem•9mo ago
+solved @seksosterone
iTeachChem Helper
iTeachChem Helper•9mo ago
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