What are the differences between SIgma bond and Pi - bond?

5 years ago

Share

Answers : (1)

                                        








































Sigma Bond



Pi - Bond



1)      A sigma bond is formed by the end to end overlap of half – filled atomic orbitals along the inter – nuclear axis. The overlapping involves two s – orbitals, one s and p – orbital or two p - orbitals



A pi – bond is formed by the sidewise overlap of two half – filled p - orbitals



2)      In this case, the overlapping can take place to a larger extent and therefore, the bond formed is a strong bond



In the formation of Pi - bond the overlapping occurs to a lesser extent and therefore, the bond is weak.



3)      The molecular orbital is symmetrical about the intermolecular axis.



The molecular orbitals is discontinuous and consists of two charged clouds above and below the plane of atoms.



4)      There can be free rotation of atoms around o- - bond



Because of overlapping of the electrons clouds above and below the plane of the atoms, free rotation of atoms around Pi - bond is not possible.



5)      The bond may be present between two atoms either alone or along with Pi- bond.



The bound is always present between two atoms in addition to sigma bond.



6)      In the formation of sigma bond, s – orbitals can participate.



s – orbitals cannot participate in the formation of pi - bond


5 years ago

Post Your Answer

More Questions On Physical Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
I cant solve numericals involving mole concept please help me
 
 
Hi student No problem. You just post the required question and anybody will get back to...
  img
Raheema Javed 2 months ago
 
  img
Saurabh Kumar 2 months ago
bile juice responcible for emulsification of fats is stored in
 
 
Bile or gall is a bitter-tasting, dark green to yellowish brown fluid, produced by the liver of most vertebrates, that aids the digestion of lipids in the small intestine. In humans, bile is...
  img
Sunil Kumar FP 2 months ago
 
Hello Student Bile juice is one of the number of ther digesive juices prent in human digestive system. Bile juice is responcible for emulsification of the fats of the foold. Bille juice is...
  img
Gaurav 2 months ago
Enthalpy of combustion of H2 to form H20 at 298K is -298KJ/mole. Bond enthalpies of H-H and O=O are 433KJ/mole and 492KJ/mole respectively. Find bond enthalpy of O-H ?
 
 
The reaction can be given as: H2....+......(1/2)O2..................................>......H2O.......+......298kJ/mol In this reaction, for combustion of 1 mole of H2, one mole of H-H...
  img
Naveen Kumar 3 months ago
 
Dear student just replace the sign of the energy released because it is exothermically released. what you will get is also bond energy released in the formation of O-H bond....
  img
Naveen Kumar 3 months ago
 
answer is not matching , answr given is B
 
Damini Parihar 3 months ago
How can these be tautomers when they do not contain an alpha-Hydrogen?
 
 
Tautomers are constitutional isomers of organic compounds that readily interconvert by a chemical reaction called tautomerization. This reaction commonly results in the formal migration of a...
  img
Suraj Prasad 2 months ago
 
does it mean that the compound will show only structural isomerism.. and not tautomerism..??
 
ANMOL SETH 2 months ago
Why Eu ropium shows a sudden increase in atomic radius. (At. Radius of Sm = 180pm , Eu = 199pm and Gd = 180 pm)?
 
 
Actually there is confusion in you.The atomic radius which I found was all the same for the three element as 180 pm. Lets see,there is a decrease in atomic radius There is a decrease in the...
  img
Sunil Kumar FP 3 months ago
 
@Sunil Kumar FP Go to this link and check Table 8.9 on pg.229 ncertbooks.prashanthellina.com/class_12.Chemistry.ChemistryI/8.pdf
 
Shibashis Mallik 3 months ago
View all Questions »