In ion number of bond pair and lone pair of electrons on nitrogen atom are
2, 2
3, 1
1, 3
4, 0
AsF5 molecule is trigonal bipyramidal. The hybird orbitals used by As atoms for bonding are
dxy,s,px,py,pz
s,px,py,pz,dxy
dx2-y2,s,px,py,pz
Which of the following species is para-magnetic ?
NO
CO
CN-
Among the following orbital bonds, the angle is minimum between
sp3 bonds
px and py orbitals
H-O-H in water
sp bonds
The relationship between the dissociation energy of N2 and is
dissociation energy of > dissociation energy of N2
dissociation energy of N2 = dissociation energy of
dissociation energy of N2 > dissociation energy of
dissociation energy of N2 can either be lower or higher than the dissociation energy of
For two ionic solids CaO and Kl, identify the wrong statement among the following
Lattice energy of CaO is much larger than that of Kl
Kl is soluble in benzene
Kl has lower melting point
CaO has higher melting point
Among the following group which represents the collection of isoelectronic species ?
NO, CN-, N2, O2
NO+, , CO
Which of the following molecule does not have a linear arrangement of atoms ?
Overlapping valence orbitals
Mobile valence electrons
Delocalised electrons
Highly directed bonds
Linus Pauling received the Nobel Prize for the work on
atomic structure
photosynthesis
chemical bonds
thermodynamics
Linear combination of two hybridised orbitals belonging to the two atoms, each having one electron lead to a
sigma bond
double bond
coordinate bond
pi-bond
