3.2.5.5 Variable Oxidation States Flashcards
1
Q
Why do transition metals have variable oxidation states?
A
They can use their 3d and 4s electrons in bonding
2
Q
Do all transition metal ions exist as simple ions?
A
No, only simple ones such as Mn 2+
Mn 7+ will only exist in a covalent compound
3
Q
How can titration be used for transition metals?
A
A colour change may occur which stops the need for an indicator
4
Q
How are transition metals effected in alkaline solution?
A
Oxidation tends to happen because there is a tendency to form negative ions
5
Q
How do you oxidise a transition metal to a high oxidation state?
A
Add an alkali followed by an oxidising agent
