d and f BLOCK ELEMENTS

How many electrons are involved in the reduction of one MnO₄⁻ ion to MnO₄²⁻?

• 1
• 2
• 3
• 5

How many electrons are involved in the reduction of one MnO₄⁻ ion to MnO₂ in acidic solution?

• 3
• 5
• 1
• 2

How many electrons are involved in the reduction of one MnO₄⁻ ion to Mn²⁺ in acidic solution?

• 5
• 3
• 1
• 7

Which of the following ions does KMnO₄ oxidize to produce free iodine in acidic solution?

• Iodide
• Iodate
• Periodate
• Hypoiodite

Which of the following is NOT a product when acidified KMnO₄ oxidizes oxalate ions?

• Carbon monoxide
• Carbon dioxide
• Water
• Hydrogen ions