Topic 3 Redox

Question 1

Oxidation state of an element

Answer 1

0

Question 2

When is hydrogens oxidation number not +1

Answer 2

When it is in a metal hydride with oxidation number -1

Question 3

When is Cl oxidation number not 1-

Answer 3

When’s it’s in a compound with O or F

Question 4

When does O not have oxidation state of -2

Answer 4

In peroxide (H2O2) it is -1 and in OF2 it is 2+

Question 5

What is Disproportionation

Answer 5

An element in a single species is simultaneous oxidised and reduced