Molecular structure models

Question 1

Chemical structurs in which covalent bonding between atoms is represented by dots, dot pairs or dashes

Answer 1

Lewis structures

Question 2

What is Formal charge in Lewis’s structure?

Answer 2

Formal charge is used to figure out which structure has the lowest energy and hence is the most stable.

Question 3

A formal charge of close to zero means?

Answer 3

Stable Bonding

Question 4

How Formal Charge is calculated?

Answer 4

FC = (No. of valence electrons) - (No. of nonbonding valence electron) - (I/2 ( Electrons shared in bonding).

Question 5

What are Resonace Structures?

Answer 5

Different possible arrangements of electrons in a molecular structure that cannot be accurately represented by a single Lewis structure.

These structures represent delocalized electrons that are shared across multiple atoms rather than being confined to a single bond.

Question 6

Example of Resonace Structures

Answer 6

Benzene Ring

Question 7

What is geometry and angle of a molecule with 2 bonding pairs and 0 lone pairs?

Answer 7

linear and angle is 180 Degree

Question 8

What is geometry and angle of a molecule with 3 bonding pairs and 0 lone pairs?

Answer 8

Trigonal planar and angle is 120 degrees