d and f BLOCK ELEMENTS

What is the stable oxocation formed by Vanadium in its +5 oxidation state?

• VO2+
• VO+
• VO2 +
• VO3 -

What is the stable oxocation formed by Vanadium in its +4 oxidation state?

• VO2 +
• VO+
• VO2+
• VO3 -

What is the stable oxocation formed by Titanium in its +4 oxidation state?

• TiO+
• TiO2+
• TiO3 2-
• Ti(OH)2+

Which of the following is NOT a characteristic property of transition metal oxides as oxidation number increases?

• Acidic character becomes predominant
• Ionic character increases
• Melting points tend to be lower
• Covalent character increases

What is the main product formed when CrO3 reacts with water?

• HCrO2
• H2CrO4 and H2Cr2O7
• Cr(OH)3
• H3CrO3