Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Periodic Table

In potassium nitroprusside K₂[Fe(CN)₅NO⁺] oxidation number of Fe is

1

2

2

3

3

0

4

More than one of the above

5

None of the above

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