
What is the formal charge on Cl in the following Lewis structure?
(A) 0
(B) +3
(C) +5
(D) +7

Answer
399k+ views
Hint :The given Structure is that is Perchloric acid. The Central Atom Chlorine is bonded to 4 oxygen atoms. Each bond between oxygen and chlorine depicts the presence of two electrons. The two electrons which occur in pairs in the Lewis structure are the non-bonding electrons.
Complete Step By Step Answer:
is a polyatomic molecule with 34 valence electrons.
The formal charge on a polyatomic ion or molecule is the difference between the number of valence electrons of the element minus the sum of the number of nonbonding electrons plus the number of bonding electrons.
Chlorine has the atomic number 17. It has 7 valence electrons in the elemental state. The outer shell of chlorine is filled with 8 electrons and has a stable configuration.
Oxygen has valency 6 in the elemental state. The three oxygen atoms have 6 unpaired electrons on them. The oxygen bonded to hydrogen has 4 electrons.
We have to calculate the formal charge on Chlorine.
The formula for finding the formal charge is-
Half the total number of bonding electrons is the number of bonds formed by the atom.
For chlorine,
Total valence electrons= 7
Total number of nonbonding electrons= 0
Total number of bonds formed= 4
Substituting the above numbers in the formula,
F.C. on Chlorine
Final answer: Correct answer is .
Note :
In the given structure of it doesn’t show the presence of electrons on Chlorine, but instead has bonds. The bond depicts the presence of one electron pair shared between the oxygen atom and the chlorine atom. The Lewis structure of any molecule shows the outer shell configuration of the atom.
Complete Step By Step Answer:
The formal charge on a polyatomic ion or molecule is the difference between the number of valence electrons of the element minus the sum of the number of nonbonding electrons plus the number of bonding electrons.
Chlorine has the atomic number 17. It has 7 valence electrons in the elemental state. The outer shell of chlorine is filled with 8 electrons and has a stable configuration.
Oxygen has valency 6 in the elemental state. The three oxygen atoms have 6 unpaired electrons on them. The oxygen bonded to hydrogen has 4 electrons.
We have to calculate the formal charge on Chlorine.
The formula for finding the formal charge is-
Half the total number of bonding electrons is the number of bonds formed by the atom.
For chlorine,
Total valence electrons= 7
Total number of nonbonding electrons= 0
Total number of bonds formed= 4
Substituting the above numbers in the formula,
F.C. on Chlorine
Final answer: Correct answer is
Note :
In the given structure of
Recently Updated Pages
Master Class 9 General Knowledge: Engaging Questions & Answers for Success

Master Class 9 English: Engaging Questions & Answers for Success

Master Class 9 Science: Engaging Questions & Answers for Success

Master Class 9 Social Science: Engaging Questions & Answers for Success

Master Class 9 Maths: Engaging Questions & Answers for Success

Class 9 Question and Answer - Your Ultimate Solutions Guide

Trending doubts
According to Bernoullis equation the expression which class 11 physics CBSE

Draw a diagram of nephron and explain its structur class 11 biology CBSE

Differentiate between calcination and roasting class 11 chemistry CBSE

A solution of a substance X is used for white washing class 11 chemistry CBSE

What is spore formation class 11 biology CBSE

10 examples of friction in our daily life
