The chemistry of colour

The diagram represents...

• A Bohr diagram

• An Absorption Spectrum

• A Continuous Spectrum

• An Emission Spectrum

In the visible spectrum... (more than 1 answer)

• The colour red has the highest wavelength

• The colour red has the highest energy level

• The colour red has the lowest frequency

• The colour red has the lowest energy level

Shining and verlapping 3 primary colour light rays on a white surface leads to the formation of white. This is called...

• Addition theory

• Subtraction theory

In colour adddition theory, the primary colours are...

• Red, Green, Yellow

• Red, Green, Blue

• Magenta, Cyane, Yellow

Colour subtraction: When white light hits a red filter, the colours seen on a white screen behind the filter will be a combination of:

• Blue and Yellow

• Green

• Blue and Green

• Magenta

A group of different versions of polyatomic ions or molecules, showing the possible position of the delocalized electrons is a...

• Lewis Diagram

• Conjugated System

• Resonance Structure

• Bohr Diagram

In a resonance structure electrons can move in the following way:

• Single bond to double bond

• Double bond to positively charged atom

• Double bond to negatively charged atom

• Lone pair to an already existing double bond

In this diagram there are ... conjugated bonds.

• 2

• 3

• 4

• 5

In a conjugated system, which molecular orbitals overlap, leading to delocalization of electrons?

• sp2

• sp

• sp3

• p

Conjugated bonds lead to ................. energy between the ground state and excited state, allowing absorption of energy in the visible light range.

• lower

• higher