Formal Charge

Chemistry ⇒ Chemical Bonding and Structure

Formal Charge starts at 11 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Formal Charge. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 11

Calculate the formal charge on each atom in the cyanide ion (CN^-).

Calculate the formal charge on each atom in the Lewis structure of HCO₃^-.

Calculate the formal charge on each atom in the Lewis structure of O₂.

Calculate the formal charge on the central atom in SO₄^2-.

Calculate the formal charge on the oxygen atom in the hydroxide ion (OH^-).

Calculate the formal charge on the phosphorus atom in PO₄^3-.

Calculate the formal charge on the sulfur atom in H₂SO₄.

Describe the difference between formal charge and oxidation number.

Describe the significance of minimizing formal charges in a Lewis structure.

Describe the steps to calculate the formal charge on an atom in a molecule.

Explain why formal charge is important in determining the preferred resonance structure.

Explain why the formal charge on the central atom in BF₃ is zero.

Explain why the formal charge on the oxygen atom in the hydroxide ion (OH^-) is -1.

In the nitrate ion (NO₃^-), what is the formal charge on the nitrogen atom?

What is the formula for calculating the formal charge on an atom in a molecule?