1800-150-456-789
FlagBACK
Flag Discuss with colleagues and IITians> what is the oxidation state of iron in br...
question mark

what is the oxidation state of iron in brown ring complex

vivek raj , 13 Years ago
Grade 11
anser 5 Answers
Ashwin Muralidharan IIT Madras

Last Activity: 13 Years ago

Hi Vivek,

 

The OS of Fe in Brown ring is +1. The complex formed is [Fe.NO.5H2O]SO4..The charge on anion is -2. Hence charge on cationic complex has to be +2 as ring is electrically neutral. The charge on Fe on calculation comes out to be +2.. BUT electrontransfer take place from NO to Fe. Hence No and Fe acquire a charge of +1 each.
Hence the OS of Fe in brown ring is +1, due to charge transfer between Fe and NO.

 

Hope that helps.

 

All the best.

Regards,

Ashwin (IIT Madras).

Harsh jain

Last Activity: 6 Years ago

This is a fact.

A Jayanth

Last Activity: 5 Years ago

Recent researches are saying oxidation number of iron as +3.In many books it's not updated, even in ncert this thing is not updated

sree lakshmi

Last Activity: 5 Years ago

[Fe(H2O)5(NO)]SO4]  
is the formula of the complex It is known that both NO and NO+ are able to act as ligands
if we take NO as ligand the oxdn  state of Fe will be +2  and for NO+ it will be +1  however this question was asked in jee  and it was accepted  that Fe  is in +1 oxdn state 

Kushagra Madhukar

Last Activity: 4 Years ago

Dear student,
Please find the answer to your question.
 
The OS of Fe in Brown ring is +1. The complex formed is [Fe.NO.5H2O]SO4
The charge on anion is –2. Hence charge on cationic complex has to be +2 as ring is electrically neutral.
The charge on Fe on calculation comes out to be +2.
But electrontransfer take place from NO to Fe. Hence NO and Fe acquire a charge of +1 each.
Hence the OS of Fe in brown ring is +1, due to charge transfer between Fe and NO.
 
Thanks and regards,
Kushagra

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on discuss with colleagues and iitians

question mark
Are core branches(Mechanical) in Top 3 NIT worth it ?
discuss with colleagues and iitians
1 Answer Available

Last Activity: 2 Years ago

question mark
My rank in JEE Advanced 2022 is 1871. Should I go for IIT Guwahati ECE or IIT Kanpur Mechanical and try for a branch change to CS or Electrical Engineering? Is changing your branch very difficult?
discuss with colleagues and iitians
1 Answer Available

Last Activity: 2 Years ago

question mark
What awaits me after jee and do you think it's worth it?
discuss with colleagues and iitians
0 Answer Available

Last Activity: 2 Years ago

question mark
Can i sacrifice board exams for jee mains as board exams are no where valueable as cuet and other will be seen for admission
discuss with colleagues and iitians
0 Answer Available

Last Activity: 2 Years ago

question mark
Is a student studying in IGCSE syllabus eligible for taking IOQP or IOQJS?
discuss with colleagues and iitians
0 Answer Available

Last Activity: 2 Years ago