Redox

Question 1

what is oxidation

Answer 1

loss of electrons

Question 2

what is reduction

Answer 2

gain of electrons

Question 3

what is a agent

Answer 3

helper in the process

Question 4

what happens to a reducing agent

Answer 4

lose electrons (because it’s been oxidised)

Question 5

what happens to an oxidising agent

Answer 5

gains electrons (because its been reduced)

Question 6

what is the oxidising state of uncombined elements

Answer 6

0

Question 7

what is the sum of all of the oxidising states in compound

Answer 7

0

Question 8

what is the oxidising state of a simple ion (like Mg2+)

Answer 8

equal to its charge

Question 9

what is the sum of all of the oxidising states in a complex ion (like NH4+)

Answer 9

equal to its charge

Question 10

what is the oxidising state of hydrogen in compounds

Answer 10

+1

Question 11

what is the oxidising state of hydrogen if its bonded to a metal

Answer 11

-1

Question 12

what is the oxidising state of oxygen

Answer 12

-2

Question 13

what is the oxidising state pf oxygen if its in the compound hydrogen peroxide (H2O2)

Answer 13

-1

Question 14

what is the oxidising state of fluorine

Answer 14

-1

Question 15

what is the oxidising state of chlorine

Answer 15

-1

Question 16

in which order do you assign oxidising states

Answer 16

Under uncombined metals
My metals
Face fluorine
Here’s hydrogen
Our oxygen
Chin chlorine

Question 17

Work out oxidising state of Cl
in FCl

Answer 17

+1

Question 18

Work out oxidising state of Al in LiAlH4

Answer 18

+3

Question 19

Work out oxidising state of Cr in (Cr2O7)2-

Answer 19

+6