d and f BLOCK ELEMENTS

What is the coefficient of I2 in the balanced half-reaction for the oxidation of iodide ions by dichromate?

• 1
• 2
• 3
• 6

What is the total number of electrons transferred in the reduction half-reaction of dichromate in acidic solution?

• 2
• 3
• 6
• 12

What is the change in the oxidation state of chromium for EACH chromium atom in the dichromate ion during its reduction to Cr^3+?

• Decrease by 6
• Decrease by 3
• Increase by 3
• Remains the same

What is the change in the oxidation state of iron in the reaction where dichromate oxidizes Fe^2+ to Fe^3+?

• -1
• +1
• +2
• +3

What is the coefficient of Fe^3+ in the balanced ionic equation for the reaction between dichromate and iron(II)?

• 1
• 2
• 3
• 6