JEE Main & Advanced
Chemistry
Redox Reactions / रेडॉक्स अभिक्रियाएँ
Question Bank
Oxidation number and Oxidation state
question_answer
The brown ring complex compound is formulated as \[[Fe{{({{H}_{2}}O)}_{5}}NO]\,S{{O}_{4}}.\] The oxidation state of iron is [EAMCET 1987; IIT 1987; MP PMT 1994; AIIMS 1997; DCE 2000]
A) 1
B) 2
C) 3
D) 0
Correct Answer:
B
Solution :
In this complex iron is a central metal atom showing + 2 oxidation state.