Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockMedium2 minQB

ChemistryMediummultiple choice

oxidation number of Fe is +3 in :-

Answer:

A, C

Solution:

Hematite (Fe₂O₃): Oxygen = −2, therefore Fe = +3.

Potassium ferrocyanide (K₄[Fe(CN)₆]): Fe oxidation state = +2, so not correct.

Basic ferric acetate [Fe₃(OH)₂(CH₃COO)₆]⁺: Let Fe = $x$ . Calculation gives total Fe oxidation state = +9, so each Fe = +3.

Brown ring complex [Fe(H₂O)₅(NO)]SO₄: Fe is in +1 oxidation state (commonly treated as Fe⁺ with NO⁺), not +3.

Stream:JEESubject:ChemistryTopic:Complete d-blockSubtopic:d-block

⏱ 2mℹ️ Source: QB

Loading discussions...