The correct order of bond length for CO, CO2, CO3 2-(carbonate) is:


3 years ago


Answers : (1)


When we consider a bond between two atoms, the type of bond gives a relative measure of the bond length.

Triple Bond Strongest, 3 electron pairs shared, shortest bond
Double Bond Middle, 2 electron pairs shared
Single Bond Weakest, 1 electron pair shared, longest bond

We need to determine the bond types for each molecule or ion:

CO, When drawing the lewis structure here, we end up with a triple bond between the carbon and the oxygen (and a -1 charge on the C and a +1 charge on the O)

CO2 This lewis structure gives one double bond between each oxygen and the carbon.

[CO3]2- This one is a little trickier, but when we draw the lewis structure for this ion, we get a double bond between one oxygen and the carbon, with single bonds between the other two oxygen atoms and the carbon. Because each of the oxygens want a double bond to the carbon, they all fight over it (giving resonance structures), meaning that in the end, you get a bond something between a double and a single bond for each Carbon-Oxygen bond. Therefore, this bond will be longer than a single bond, but shorter than a double bond:

So, this give the following increasing order of bond length:

[CO3]2-, CO2, CO

3 years ago

Post Your Answer

More Questions On Physical Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
The vapour density of a mixture containing NO2 and N2O4 is 38.3 at 300K. The number of moles of NO2 in 100g of the mixture is … ?
The vapor density of a gas is the density of that gas relative to that of hydrogen gas. Therefore, Vapor density = (density of NO2/N2O4 mixture)/ (density of H2 gas) Vapor density = (mass of...
Sunil Kumar FP 10 days ago
what is the formulas of glucose
C6H12O6 Thanks & Regards Name, askIITians Faculty Qualification. College graduated
Amit Jain 4 months ago
jogiraju 4 months ago
jogiraju 4 months ago
"a stone is throwen in a vertically up wards directionwith the velocity of 5 m/s.if the acceleration of the stone is 10m/s in the downwords direction .what will be the height attained by the...
u=5m/s a= -10m/s^2 h=Max. Height :v^2=U^2-2gH 0=25-20H 20H=25 :H=5/4m Now, v=u-gt 0=5-10t 10t=5 t=1/2s
Vaibhav 6 days ago
what is eletronegativity?
Electronegativity is the tandency of atom to attract the shared pair of electron towards itself. Decreasing order of electronegttivity is given below- F > N > Cl > Br > I > S...
arvind rathore one year ago
It is the tendency of an atom or ion that is participating in either ionic or covalent bond formation to attract the shared pair of electron towards itself.
Akshay Amol Revankar one year ago
Electronegativity is the tendency of an atom to attract electrons more towards itself. It is calculated in Pauling scale.
Chilukuri Sai Kartik one year ago
I want to knw easy logic to find number of isomers of C7H9N
Toluidine 1-amino-2-methylorortho-toluidine 1-amino-3-methylormeta-toluidine 1-amino-4-methylorp-toluidine, Lutidine 2,3-dimethylpyridineor 2,3-lutidine 2,4-dimethylpyridineor 2,4-lutidine...
Sher Mohammad 18 days ago
define the lewis acid
A Lewis acid is an substance that is an electron pair acceptor. Examples: H+ is a Lewis acid because it can accept a pair of electrons. It combines with the available electron pair from the...
Indu 4 months ago
According to the Lewis any substance which accepts the electron pair is known as acid.
sivakrishna 4 months ago
All the cations are lewis acids.
sivasai 4 months ago
View all Questions »