Kinetics, equilibria and redox reactions

Question 1

What is oxidation in terms of electrons?

Answer 1

Loss of electrons.

Question 2

What is reduction in terms of electrons?

Answer 2

Gain of electrons.

Question 3

What is the oxidizing agent?

Answer 3

The thing that is reduced; the electron acceptor.

Question 4

What is the reducing agent?

Answer 4

The thing that is oxidized; the electron donor.

Question 5

What does OILRIG stand for?

Answer 5

Oxidation Is Loss (of electrons) Reduction Is Gain (of electrons).

Question 6

What is the oxidation state of an uncombined element?

Answer 6

0

Question 7

What is the oxidation state of an ion?

Answer 7

The charge on the ion.

Question 8

What is the oxidation state of a group 1 element?

Answer 8

+1

Question 9

What is the oxidation state of a group 2 element?

Answer 9

+2

Question 10

What is the oxidation state of aluminium?

Answer 10

+3

Question 11

What is normally the oxidation state of hydrogen?

Answer 11

+1

Question 12

What is the oxidation state of hydrogen in hydrides?

Answer 12

-1

Question 13

What is a hydride?

Answer 13

A hydrogen atom bonded to a metal atom.

Question 14

What is normally the oxidation state of chlorine?

Answer 14

-1

Question 15

What is the oxidation state of chlorine if bonded to a fluorine or oxygen atom?

Answer 15

Positive (depends on other charges to balance)

Question 16

What is the oxidation state of fluorine?

Answer 16

-1

Question 17

What is normally the oxidation state of oxygen?

Answer 17

-2

Question 18

What is the oxidation state of oxygen in peroxides?

Answer 18

-1

Question 19

What is a peroxide?

Answer 19

A compound with another atom for every oxygen atom, e.g. H2O2