The angle between the overlapping of one s-orbital and one p-orbital is
180o
120o
109o28'
120o,60'
The weaker among the following types of bond is
ionic
covalent
metallic
H-bond
An sp3- hybrid orbital contains
1/4 s- character
1/2 s- character
1/3 s-character
2/3 s- character
Which one of the following is the correct order of interactions?
Covalent < hydrogen bonding < van der
Van der Waals' < hydrogen bonding < dipole-dipole < covalent
Van der Waal's < dipole-dipole < hydrogen bonding < covalent
Dipole-dipole < van der Waal's < hydrogen bonding < covalent
Which of the following statement is not correct?
Double bond is shorter than a single bond
Sigma bond is weaker than a π (pi) bond
Double bond is stronger than a sing bond
Covalent bond is stronger than hydrogen bond
The BCI3 is a planar molecule whereas NCI3 is pyramidal because
B - CI bond is more polar than N-CI bond
N-CI bond is more covalent than B-CI bond
Nitrogen atom is smaller than boron atom
BCI3 has no lone pair but NCI3 has a lone pair of electrons
Among the following orbital bonds, the angle is minimum between
sp3 bonds
Px and Py orbitals
H - O - H in water
sp bonds
Which structure is linear?
SO2
CO2
CO2-3
SO2-4
Which of the following does not apply to metallic bond?
Overlapping valence orbitals
Mobile valence electrons
Delocalised electrons
Highly directed bonds
AsF5 molecule is trigonal bipyramidal. The hybrid orbitals used by As atoms for bonding are
dx2-y2,dz2, s,px,py
dxy, s, px, py,pz
s,px,py,pz,dxy
dx2-y2,s,px,py,pz
