d and f BLOCK ELEMENTS

What is the usual oxidation state of Copper (Cu) in Copper(I) oxide (Cu2O)?

• 0
• +1
• +2
• +3

What is the usual oxidation state of Iron (Fe) in Iron(III) oxide (Fe2O3)?

• +2
• +3
• +6
• Variable

What is a common characteristic of the highest oxides of transition metals (e.g., Mn2O7, CrO3)?

• They tend to be basic.
• They tend to be amphoteric.
• They tend to be acidic.
• They are always ionic.

What is the highest oxidation state commonly exhibited by Chromium (Cr)?

• +3
• +4
• +5
• +6

Why is Zinc (Zn) not considered a typical transition element?

• Because it is a metal
• Because it has a completely filled d-subshell (3d10) in its ground state and common oxidation states.
• Because it is located in the d-block
• Because it forms alloys