AQA Inorganic Definitions

Question 1

Amphoteric

Answer 1

Act as acids and bases

Question 2

Lewis Acid

Answer 2

Electron pair acceptor

Question 3

Lewis Base

Answer 3

Electron pair donor

Question 4

deltaE

Answer 4

energy difference between d-orbitals

Question 5

h

Answer 5

Planck’s constant

Question 6

v

Answer 6

frequency of light absorbed

Question 7

heterogeneous

Answer 7

In a different state from reactants

Question 8

homogeneous

Answer 8

In the same state as the reactants

Question 9

Autocatalyst / Autocatalysed

Answer 9

The catalyst is a reaction product

Question 10

Ligand

Answer 10

electron pair donor

Question 11

Monodentate

Answer 11

Donates one electron pair

Question 12

Bidentate

Answer 12

donates two electron pairs from two atoms

Question 13

Multidentate

Answer 13

Forms two or more co-ordinate bonds

Question 14

complex

Answer 14

ion co-ordinately bonded to one or more ligands

Question 15

Co-ordinate bond

Answer 15

a covalent bond in which both electrons are donated by one atom

Question 16

Co-ordination number

Answer 16

The number of co-ordinate bonds formed to a central metal ion

Question 17

Chelate Effect

Answer 17

Substitution of a monodentate ligand by a multidentate ligand giving a more stable complex and an increase in entropy