Question

Which of the following is/are true concerning formal charge? 1. 2. 3. The formal charge of each individual atom in a molecule or ion is an actual atomic charge that can be experimentally determined. The formal charge of each individual atom is always the same for each possible resonance form. The sum of the formal charges of each atom in a molecule or lon equal the overall charge of the molecule or ion. Select one: a. 1 only b. 2 only c. 3 only d. 1 and 2 e. none

Answer 1

Ans:(c) 3 only

Solution;

The sum of formal charge of each atom must be equal to the overall charge of the molecule or ion.

---->statement 1 is false because,partial charge(each atom) must be based on the theoritical concepts,such as Mulliken population analysis,or be derived from measurable such as dipole moment.

--->statement 2 is false because the sum of formal charge of each indivisual atom is not always (different)the same for each possible resonance structure.