What are the differences between sigma and pi bonds?
A sigma bond can be between s or p orbitals whereas a pi bond can only be between p orbtials
In signma bonds, atomic orbitals overlap along bonding axis, in pi bonds atomic orbitals overlap above and below bonding axis
Sigma bonds are stronger than pi bonds as a result of the orientation of the overlapped orbitals
PK
Related Chemistry A Level answers
All answers ▸The molecular formula of TCDD is C12H4O2Cl4. Chlorine exists as two isotopes 35Cl (75%) and 37Cl (25%). How many molecular ion peaks are there? What is the mass of the most abundant one?
Benzene reacts with Chlorine gas in the presence of iron trichloride to yield hexachlorobenzene. However, when it reacts with fluorine gas, it forms a quinoid product (I would actually draw it for them - no need to know the name). Why the difference?
State the meaning of the term first ionisation energy
Find the concentration of calcium carbonate given that 25cm^3 of CaCO3 is neutralised by an average of 14cm^3 of 0.1 molar HCl .