The Question is from neet-chemistry chemical-bonding formal-charge, and it was created by the author A.RAMA NAGESWARARAO

Question

Which of the following statements regarding formal charge is INCORRECT?

A.RAMA NAGESWARARAO · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [C]
## CONCEPT FRAMEWORK
	**Primary Concept**: Formal charge calculation
	**Related Topics**: Lewis structures, electronegativity, molecular stability
	**Prerequisites**: Understanding of covalent bonding and electron distribution
## SOLUTION PATHWAY
**Given Information**:
		Formal charge is defined as:
		$$	ext{Formal Charge} = 	ext{Valence Electrons} - 	ext{Nonbonding Electrons} - \frac{1}{2} 	imes 	ext{Bonding Electrons}$$
		Statements regarding formal charge are provided.
**Method & Steps**:
	1.	Identify the definition of formal charge.
		Reasoning: Formal charge helps determine how electrons are distributed in a molecule.
		Formula/Rule: $$	ext{Formal Charge} = 	ext{Valence} - 	ext{Nonbonding} - \frac{1}{2} 	imes 	ext{Bonding}$$
	2.	Assess the role of formal charge in Lewis structures.
		Working: Formal charge is used to choose the most stable Lewis structure.
		Key Point: The most stable structure has formal charges close to zero.
	3.	Analyze the incorrect statement about electronegativity.
		Result: Formal charge does not consider electronegativity; it focuses on electron distribution based on bonding and lone pairs.
		Verification: The incorrect statement is that formal charge considers electronegativity.
 ## OPTION ANALYSIS
[A] ✓: Formal charge is a hypothetical charge assigned to an atom in a molecule. [This statement is correct as it defines what formal charge is.]
[B] ✓: Formal charge helps in determining the most stable Lewis structure. [This statement is also correct as it describes the utility of formal charge.]
[C] :x: Formal charge considers the electronegativity of atoms in a molecule. [This statement is incorrect; formal charge does not account for electronegativity.]
[D] ✓: Formal charge assumes perfect covalent bonding where electrons are shared equally. [This statement is correct as formal charge assumes an idealized scenario of bonding.]
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing formal charge with oxidation states: Remember that formal charge is based on electron counting, while oxidation states consider electronegativity differences.
		2. Misapplying the formal charge formula: Ensure to correctly identify and count valence, nonbonding, and bonding electrons.
	**Quick Tips**:
		1. Always check that the sum of formal charges equals the overall charge of the molecule.
		2. Use the concept of formal charge to justify the most stable resonance structure by minimizing charges.

A.RAMA NAGESWARARAO · Answer

Formal charge is a hypothetical charge assigned to an atom in a molecule.

A.RAMA NAGESWARARAO · Answer

Formal charge helps in determining the most stable Lewis structure.

A.RAMA NAGESWARARAO · Answer

The correct Option is "Formal charge considers the electronegativity of atoms in a molecule."

A.RAMA NAGESWARARAO · Answer

Formal charge assumes perfect covalent bonding where electrons are shared equally.

NEET Chemistry Chemical Bonding and Molecular Structure Formal Charge MCQs

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