Choose the best lewis structure for OCl2
So, the question is – Choose the best lewis structure for OCl2?
According to the above figure, option – (D) is the best lewis structure of OCl2.
The lesser the formal charge on atoms, the better the stability of the lewis diagram. We need to check the formal charge on each lewis structure of OCl2 to get its stability.
The formal charge can be found by using the formula given below –
Let’s calculate the formal charge for this lewis structure of OCl2 (Option D) –
For chlorine atom:
⇒ Valence electrons of chlorine = 7
⇒ Nonbonding electrons on chlorine= 6
⇒ Bonding electrons around chlorine(1 single bond) = 2
∴ (7 – 6 – 2/2) = 0 formal charge on chlorine atoms.
For oxygen atom:
⇒ Valence electrons of oxygen = 6
⇒ Nonbonding electrons on oxygen = 4
⇒ Bonding electrons around oxygen(2 single bond) = 4
∴ (6 – 4 – 4/2) = 0 formal charge on oxygen atoms.
So, all atoms in the above structure get a formal charge equal to zero, hence, this is our most stable and correct lewis structure of OCl2.
Also, you can easily calculate the formal charge for every lewis structure, and then choose the best structure that has the least or zero formal charge.
Also check –
About the author
Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. A passion for sharing knowledge and a love for chemistry and science drives the team behind the website. Let's connect through LinkedIn: https://www.linkedin.com/in/vishal-goyal-2926a122b/