d and f BLOCK ELEMENTS

Which of the following best describes the trend in oxidation states for the heavier members of d-block groups (compared to lighter members)?

• Lower oxidation states are more favored
• Higher oxidation states are more favored
• Oxidation states do not change
• They always show +2 oxidation state

What is the primary factor limiting Zinc to only the +2 oxidation state?

• Its high ionization energy
• Its completely filled d subshell
• Its small atomic size
• Its high electronegativity

Why is Cr(VI) considered a strong oxidizing agent in acidic medium?

• It is more stable than Cr(III)
• It is less stable compared to Mo(VI) and W(VI)
• It has a high electron affinity
• It is a large ion

Which of the following is NOT a typical high oxidation state example mentioned for early 3d elements?

• Ti⁴⁺ in TiO₂
• V⁵⁺ in VO₂⁺
• Cr⁶⁺ in CrO₄²⁻
• Sc²⁺

What is the oxidation state of Copper in its most common compounds?

• 0
• +1 or +2
• +3
• +4