Unit 18: Transition Metals — Mcqs

Q1.I.Which statement about the general physical properties of the first-row transition elements (titanium to copper) is incorrect?

Q1.II.The ability of transition elements to behave as catalysts is primarily linked to which of their properties:

Q1.III.What is the reason for variable oxidation states in 3d transition metals?

Q1.IV.Which ionic configuration represents a metal that lost only its 4s electrons? a) Ti⁴⁺ ([Ar]) b) V⁵⁺([Ar]) c) Fe²⁺([Ar] 3d⁶) d) Sc³⁺([Ar])

Q1.V.In the complex ion, [Fe(CN)₆]⁴⁻, what is coordination number of central metal ion?

Q1.VI.The colour displayed by a transition metal complex is a result of electrons moving between d-orbitals. This process is called a:

Q1.VII.Adding excess ammonia to pink [Co(H₂O)₆]²⁺ gives a yellow solution. What other changes occur besides colour change?

Q1.VIII.Which one of the following complex has different geometry than others?

Q1.IX.What geometry is typical when Co²⁺₍aq₎ reacts with six monodentate anionic ligands?

Q1.X.Optical isomers are characterized by their ability to rotate plane-polarized light. The isomer that rotates light to the right is called: