Advanced Higher Chemistry - Inorganic Chemistry

In an emission spectrum of mercury, the line at 310 nm is due to

• energy from the ultraviolet region of the electromagnetic spectrum being absorbed

• energy from the ultraviolet region of the electromagnetic spectrum being released

• energy from the visible region of the electromagnetic spectrum being absorbed

• energy from the visible region of the electromagnetic spectrum being released.

Hund’s rule states that

• electrons occupy degenerate orbitals singly with parallel spins before pairing

• no two electrons in an atom can have the same set of four quantum numbers

• electrons occupy orbitals in order of increasing energy

• the energy of an electron in an atom is quantised.

Which of the following molecules contains the smallest bond angle?

• BeCl₂

• BCl₃

• CCl₄

• PCl₅

Iron forms both Fe²⁺ and Fe³⁺ ions. Which of the following statements is correct?

• Fe²⁺ ions have more occupied energy levels than Fe³⁺ ions

• Fe²⁺ ions have more unpaired electrons than Fe³⁺ ions

• Fe³⁺ ions are a better reducing agent than Fe²⁺ ions

• Fe³⁺ ions are more stable than Fe²⁺ ions

Which metal in the following ions has the highest oxidation state?

• Cr₂O₇ ²⁻

• MnO₄^-

• VO²⁺

• Sn⁴⁺

The copper complex shown can be used as a green food colouring. What is the correct coordination number and classification for the ligand?

• 2, monodentate

• 2, tetradendate

• 4, monodentate

• 4, tetradentate

Which of the following is not a form of electromagnetic radiation?

• Beta

• Gamma

• Infrared

• Ultraviolet

This diagram represents the periodic table. What is the shaded area?

• s-block

• p-block

• d-block

• f-block

The diagram represents a d orbital. The maximum number of electrons which can occupy this orbital is

• 2

• 4

• 8

• 10

For the reaction BF₃ + F⁻ ↓ BF₄ ⁻ the three-dimensional arrangement of the bonds around the B atom changes from

• trigonal pyramidal to square planar

• trigonal pyramidal to tetrahedral

• trigonal planar to square planar

• trigonal planar to tetrahedral.