Among the following, the pair in which the two species are not isostructural, is
SiF4 and SF4
The angle between the overlapping of one s-orbital and one p-orbital is
180o
120o
109o28'
120o, 60'
Which statement is not correct ?
A sigma bond is weaker than a -bond
A sigma bond is stronger than a - bond
A double bond is stronger than a single bond
A double bond is shorter than a single bond
In BrF3 molecule, the lone pairs occupy equatorial positions to minimize
lone pair-bond pair repulsion only
bond pair bond pair repulsion only
lone pair-lone pair repulsion and lone pair-bond pair repulsion
lone pair-lone pair repulsion only
Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character follows the order
LiCl < BeCl2 > BCl3 > CCl4
LiCl < BeCl2 > BCl3 < CCl4
LiCl < BeCl2 < BCl3 < CCl4
LiCl > BeCl2 > BCl3 > CCl4
In a regular octahedral molecule, MX6 the number of X--M--X bonds at 180o is
3
2
6
4
H2O is dipolar, whereas BeF2 is not. It is because
the electronegativity of F is greater than that of O
H2O involves hydrogen bonding whereas BeF2 is a discrete molecule
H2O is linear and BeF2 is angular
H2O is angular and BeF2 is linear
In which of the following bond angle is maximum?
NH3
PCl3
SCl2
Among the following orbital bonds, the angle is minimum between
sp3 bonds
px and py orbitals
H-O-H in water
sp bonds
In which of the following molecules are all the bonds not equal ?
ClF3
BF3
AlF3
NF3
