Q In which of the following compounds iron has lowest oxidation state 1 - Chemistry - Chemistry in Everyday Life

Question

Q In which of the following compounds iron has lowest oxidation
state ?

1   F E S O 4 ( N H 4 ) 2 S O 4 6 H 2 O 2   K 4 F e ( C N
) 6 3   F e C O 5 4   F e 0 94 O

Raveena Sharma · Accepted Answer

The solution is as follows:

1 The correct option is (c) Fe(CO)5

2 This is because, the carbonyl compounds of transition metals are
formed in 0 or lowest oxidation state of the metal atom
As we know, charge on CO is 0, and molecule is neutral, so Fe will
also have neutral or 0 oxidation state

3 In other molecules, Fe is involved in ionic bonding and thus,
posses +2 or +3 oxidation state

Q. In which of the following compounds iron has lowest oxidation state ? 1 . F E S O 4 ( N H 4 ) 2 S O 4 . 6 H 2 O 2 . K 4 F e ( C N ) 6 3 . F e C O 5 4 . F e 0 . 94 O

Q. In which of the following compounds iron has lowest oxidation state ?

$1 . F E S O_{4} (N H_{4})_{2} S O_{4} . 6 H_{2} O 2 . K_{4} F e (C N)_{6} 3 . F e {(C O)}_{5} 4 . F e_{0.94} O$