Which of the following statement is not correct for sigma and pi bonds formed between two carbon atoms ?
Free rotation of atoms about a sigma bond is allowed but not in case of a pi bond
Sigma bond determines the direction between carbon atoms but a pi bond has no primary effect in this regard
Sigma bond is stronger than a pi bond
Bond energies of sigma and pi bonds are of the order of 264 kJ/mol and 347 kJ/mol, respectivley.
Which one of the following formulae does not correctly represent the bonding capacities of the atoms involved ?
In which of the following bond angle is maximum?
NH3
PCl3
SCl2
The correct order of N-O bond lengths in NO, NO2, NO3 and N2O4 is
Which one of the following is the correct order of interactions ?
Covalant < hydrogen bonding < van der Waal's < dipole-dipole
van der Waal's < hydrogen bonding < dipole-dipole < covalent
van der Waals' < dipole-dipole < hydrogen bonding < covalent
Dipole-dipole < van der Waals' < hydrogen bonding < covalent
AsF5 molecule is trigonal bipyramidal. The hybird orbitals used by As atoms for bonding are
dx2-y2 ,dz2,px,py
dxy,s,px,py,pz
s,px,py,pz,dxy
dx2-y2,s,px,py,pz
The correct order of C-O length among CO, , CO2 is
The type of hybridisation of boron in diboran is
sp-hybridisation
sp2-hybridisation
sp3-hybridisation
sp3d2-hybridisation
N2 and O2, are converted into monoanions respectively. Which of the following statements is wrong ?
In N2, the N-N bond weakens
In , O-O bond length increases
In , bond order decreases
, becomes diamagentic
Which of the following has pπ - dπ bonding ?
