The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is
2
3
4
1
The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH3 (1.5D) is larger than that of NF3 (0.2D). This is because
In NH3 as well as in NF3, the atomic dipole and bond dipole are in the same direction.
In NH3 , the atomic dipole and bond dipole are in the same direction whereas in NF3 these are in opposite directions.
In NH3 as well as in NF3, the atomic dipole and bond dipole are in opposite directions.
In NH3 , the atomic dipole and bond dipole are in the opposite directions whereas in NF3 these are in the same directions.
The correct order of the O-O bond length is O2, H2O2 and O3 is
O2 > O3 > H2O2
O3 > H2O2 > O2
O2 > H2O2 > O3
H2O2 > O3 > O2
H2O has a net dipole moment while BeF2 has zero dipole moment because
H2O molecule is linear while BeF2 is bent.
BeF2 molecule is linear while H2O is bent.
Fluorine has more electronegativity than oxygen
Berrylium has more electronegativity than oxygen.
Which of the following would have a permanent dipole moment?
BF3
SiF4
SF4
XeF4
The ground state electronic configuration of valence shell electrons in nitrogen molecule (N2) is written as
KK, σ2S2, σ*2S2, σ2P2x, π2Py2 ≈ π2Pz2
Bond order in nitrogen molecule is
0
Which of the following species is paramagnetic?
O22-
NO
CO
CN-
Which one of the following has the highest dipole moment?
AsH3
SbH3
PH3
NH3
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
