Transition Elements MCQs

1.What term describes the chemical deterioration of metals caused by their interaction with the environment?

activationenamelingcorrosioncoating

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?

Tetrahedral shapeSquare planar arrangementTrigonal bipyramidal formOctahedral configuration

4.How is the oxidation state typically denoted in complex compounds?

5.What term describes the central atom together with its attached ligands?

complex ioncoordination sphereligandcomplex compound

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?

9.What term describes substances that are drawn toward an external strong magnetic field?

10.Where are the transition metals positioned in the periodic table?

Between the lanthanide and actinide seriesSeparating the s-block and p-block elementsLocated between the chalcogen and halogen groupsBetween the d-block and f-block elements

11.Regarding the complex K2[Cu(CN)4], which of the following statements is true?

It is called potassium tetra-cyano cuprate.The coordination number of the central atom is 2.The ligand carries a positive charge.The central metal atom is located within the coordination sphere.The complex contains an octahedral geometry.

12.Which element listed below is commonly classified as a transition metal?

Scandium (Sc)Yttrium (Y)Cadmium (Cd)Cobalt (Co)

13.What type of cell is formed when a reactive metal such as aluminum interacts with a less reactive metal like copper?

14.Which of the following compounds is commonly marketed as a fertilizer?

Calcium metasilicate (CaSiO3)Sodium metasilicate (Na2SiO3)Tricalcium phosphate (Ca3(PO4)2)Manganese metasilicate (MnSiO3)

15.Which lining materials are used in an open hearth furnace when impurities such as phosphorus and sulfur are present?

16.What is the typical range of carbon content in pig iron?

0.12% to 0.25%2.5% to 4.5%2.0% to 4.0%0.25% to 2.5%

17.What primarily determines the geometry of complex compounds?

The nature of the ligands attachedThe hybridization states within ligand atomsThe hybridization of the central metal atomAll the factors mentioned above

18.What is the name of a compound or complex ion that contains a ring formed within its structure?

ligand with multiple bonding siteschelateligand with a single attachment pointcomplex containing water molecules