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- Subject
- Transition Elementschemistry-mcqs › transition-elements
- Published
- 18 Mar 2019
- Last updated
- 28 May 2026
Explanation
In the complex [Ni(CO)4], carbonyl (CO) ligands are neutral molecules, contributing no charge. Therefore, the oxidation number of the central nickel atom is 0.
More Transition Elements MCQs
Practice related questions from the same subject.
- 1.What term describes the chemical deterioration of metals caused by their interaction with the environment?
- 2.During the manufacturing of wrought iron, in which form are magnesium, silicon, and phosphorus eliminated?
- 3.What is the molecular geometry of a coordination complex when the central atom exhibits sp³d² hybridization?
- 4.How is the oxidation state typically denoted in complex compounds?
- 5.What term describes the central atom together with its attached ligands?
- 6.What is the term for a species that donates two pairs of electrons in a coordination complex?
- 7.What type of ions are formed when a transition metal compound dissolves in a salt solution?
- 8.Upon exposure to light, electrons in transition elements are excited from lower energy levels to higher energy levels in which orbitals?
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