o2 lewis structure homework Help at TutorEye
Flower

Are you a university or school looking for an online tutoring partnership ? Talk to Us

O2 Lewis structure

 

In Lewis dot structures the electrons are represented as solid dots. In molecule, two oxygen atoms share four electrons and form a double bond completing their respective octets. The four bonded electrons are shown in between two O atoms. The rest of the 4 electrons are present on each oxygen atom as lone pairs.

 

Lewis dot structures

 

 

o2 Lewis structure Sample Questions

 

 

Question 1: How many total valence electrons are present in Question 1?

 

a) 4                             b) 8
c) 12                           d) 8

 

Answer: Option c) 12 

Explanation: Each oxygen atom has 8 electrons, 6 of which are valence electrons. There are two O atoms in Explanation 1, and therefore 12 valence electrons.

 

Get the full solution!

 

Question 2: What kind of bond is present in Question 2 molecule?

 

a) Covalent bond                             b) Ionic bond
c) Co-ordinate bond                         d) None of the above

 

Answer: Option a) Covalent bond

Explanation: O is a non-metal. Bond formed between two nonmetals is covalent and is formed by sharing of electrons. In Explanation 2 Both O atoms share 4 electrons by forming a double bond. Hence, the bond is covalent 

 

Get the full solution!

 

Question 3: What do the two lines represent in Lewis structure of Question 3?

 

a) Three lone pairs                         b) Three electrons
c) Triple bond                                 d) Double bond

 

Answer: Option d) Double bond

Explanation: In the Lewis structure of Explanation 3 There is a double bond shown as the two parallel lines between the O atoms. This is a triple bond, with each bond formed by a pair of electrons, one from each O atom.

 

Get the full solution!

 

Question 4: Which of the following statements about lewis structure of Question 4 is true?

 

a) There are 8 nonbonding electrons.                         b) There are 2 bonding electrons.
c) There are two lone pairs.                                        d) There are two double bonds.

 

Answer: Option a) There are 8 nonbonding electrons.

Explanation: Each oxygen atom has 6valence electrons. Out of these 6 , each O atom uses two electrons in bonding with each other and 4 electrons are left on both O atoms. Thus, total of 8 unpaired electrons (four lone pairs) are there in lewis structure of Explanation 4.

 

Get the full solution!

 

Question 5: Oxygen molecule (Question 5) doesn’t follows the octet rule

 

a) True                   b) False
 

Answer: Option b) False

Explanation: Each O atom is surrounded by four dots (lone pairs) and two solid lines (double bond), representing another 4 electrons in the double bond. So each O is surrounded by 8 total valence electrons, completing the octet and making it stable. 

 

Get the full solution!

 

Question 6: How many bonding electrons are there in Question 6?

 

a) 2                        b) 3
c) 4                        d) 6

 

Answer: Option c) 4

Explanation: An oxygen atom has a total of 8 electrons, out of which there are 6 valence electrons. In a Explanation 6 Molecule total electrons are 16 and valence electrons are 12. The two electrons from each oxygen atom are shared with each other forming a double bond between two O atoms, thus total bonding electrons in lewis structure of Explanation 6.1 is 4.

 

Get the full solution!

 

Question 7: How many double bonds are there in lewis structure of Question 7

 

a) 0                        b) 1
c) 2                        d) 3

 

Answer: Option b) 1

Explanation: In a Explanation 7 molecule two O atoms share 4 electrons with each other forming a double covalent bond between them. Each bond is formed by a pair of electrons and thus 4 electrons give rise to a double bond. In lewis structure the double bond is represented by two solid parallel lines between two O atoms.

 

Get the full solution!

 

Question 8: What do the two dots on an atomic symbol represent in a lewis structure?

 

a) Lone pair                                           b) Single bond
c) Double bond                                      d) An unpaired electron

 

Answer: Option a) Lone pair

Explanation: The lone pair of an atom is represented by two solid dots on the  atomic symbol, in a lewis structure.

 

Get the full solution!

 

Question 9: Valence electrons are-

 

a) Total electrons in an atom                         b) Electrons in outermost shell
c) Noble gases                                              d) Electrons in outermost subshell

 

Answer: Electrons in outermost shell

Explanation: Valence electrons are electrons present in the outermost shell of an atom, and can participate in the formation of a chemical bond with other atoms.

 

 

Get the full solution!

 

Question 10: Pick the incorrect statement about Question 10 lewis structure-

 

a) There is a double bond present.                                  b) Each oxygen has a lone pair.

c) The nature of bond present is covalent.                       d) Total valence electrons are 12.

 

Answer: Option b) Each oxygen has a lone pair.

Explanation: Each oxygen atom has 6 valence electrons. Out of these 6 , each O atom uses two electrons in bonding with each other and 4 electrons are left on both O atoms. Thus, total of 8 unpaired electrons (four lone pairs) are there in lewis structure of Explanation 10, with 2 lone pairs each on O atoms.

 

Get the full solution!

 

 

Frequently Asked Questions

 

 

What is the correct Lewis structure for o2?

In an oxygen molecule, the two oxygen atoms share a double bond represented by two solid parallel lines between two O atoms. Each bond is formed by a pair of electrons. A double bond means a total of 4 electrons, 2 coming from each oxygen atom. Each oxygen atom is surrounded by 8 electrons and thus has a complete octet and stable state. The four dots on each oxygen atom represent lone pairs of electrons.

 

four dots on each oxygen atom represent lone pairs of electrons

 

 

 

What is the Lewis dot structure for the Lewis dot structure?

In Lewis dot structures the electrons are represented as solid dots. In the electrons are represented as solid dots molecule, two oxygen atoms share four electrons and form a double bond completing their respective octets. The four bonded electrons are shown in between two O atoms. The rest of the 4 electrons are present on each oxygen atom as lone pairs.

 

oxygen atom as lone pairs

 

How many bonding electrons are in the lewis structure of bonding electrons?

Each oxygen atom has six valence electrons and they tend to complete their octet of electrons by sharing or receiving electrons from other atoms. In a  sharing or receiving electrons from other atoms molecule, the two O atoms share 4 electrons by forming a double bond and complete their octets.

 

4 electrons by forming a double bond and complete their octets

 

So, there are 4 bonding electrons in a 4 bonding electrons molecule.

 

 

 

Chemistry Questions Answers Pages

 

 

We Are Different from Others!

Help with O2 Lewis Structure