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What is Inert pair effect ? Explain in detail with examples... :]
Compare relative stability of O2+ and O2- using bond order?
Arrange Li2, Li2+ and Li2- in the order of increasing stability....URGENT ANSER NEEDED!!!!!!!!!!!!!!!!!
Which out of H2O and H2S has higher boiling point and why ?
what are the limitations of valence bond theory?
Using VSEPR theory draw the structure of XeOF2 and ICl4-
why glycerol is more viscous than ethanol?
The structure and hybridization of N(SiH3)3 is
find bond order and formal charge of SO4-2 and PO4-3
What is hydration energy ?
NH3 has higher boiling point than PH3. Why?
WHAT IS HYBRIDISATION OF C2H2 WITH DIAGRAM
WHY IS KO2 PARAMAGNETIC????
OUT OF MgCl2 and MgO , which one has more lattice energy and why ??
molecular orbital of o2,
What is the limitation and advantage of hybridization ?
WHAT is the formal charge of CO3 ??
BF3 is non polar but NF3 is polar why?
what is the energy level diagram of N2 and F2?
write lewis structure of na2so4
arramge in the increasing order of bond angle
NH3, NH4+, NH2-
what is the oxidation number of sulphur in H2SO5 plz give explanation in detail
Write the MO configuration of the following species-
O2 , O2+ , O2- , O22-
Arrange them in order of their decreasing stabilities?
1.Which of the following does not obey octet rule and why?
NO , PCl3 , SF4, SO2.
2.Calculate the bond order of B2+.
3.Compare realtive stability of N2 and N2+.
4. What is the hybridisation of central atom in PCl5 , NH4+ AND BF3 ?
explain the structure of PCl5
HF is polar while F2 is nonpolar.Explain
suggest working models in chemistry
Discuss the shape of SiCl4, AsF5, H2S, PH3 using VSEPR theory ?
Explain the geometry and hybridisation of [Ni(CN)4]2-????
DRAW THE STRUCTURE OF C2H4 C2H2 (ELECTRONIC DOT STRUCTURE
why pz-pz bond is sigma bond but px-px, py-py px-py bonds are pi bonds ?
PCl5 exists but Ncl5 does not why?
which has higher boiling point CH4 or SiH4 ,,, (ans = si4) why???
how to know whether compound is paramagnetic or diamagnetic if the compound is formed of more than 2 atoms like H20, co2,No2 , So2 ,NH4 etc tell me the rule
hybridisation of CrO5??
LiF,LiCl,LiBr,LiI.Give the order of solubility in water.Explain me how to do it?
explain y BeH2 molecule has zero dipole moment although the Be-H bonds are polar...?
In PO43- ION, THE FORMAL CHARGE ON EACH OXYGEN ATOM AND P-O BOND ORDER RESP. ARE
Why the bond angle (H--N--H) in NH4+is greater than NH3?????
Write the molecular orbital configuration of N2 and N2+ . Also calculate their bond order?
NaCl gives a white precipitate with AgNO3 solution but CCl4 does not. Why?
plz explain me the lewis dot stucture of NF3 ,CO3 AND HNO3
Is HI a covalent compound or ionic compound?
According to VSEPR theory explain the shape of I3-
why KHF2 is known but KHCl2 is not known?
what is positive nd negative electron gain enthalpy
nitrobenzene has more dipole momment than nitromethane.explain???
is boric acid a protic acid ,,,,,,,,explain me fast,,,,,i hav my xam on mondayyyyyy
use the M.O theory, explain why Be2 molecule does not exist?
Explain the formation of H2 molecules on the basis of valence bond theory
On what factors do hydration energy & solubility depend ? Does the hydration energy increase with increase in solubility ?
In molecular orbital why the bonding orbital have lower energy than the antibonding orbital.....xplain
The molecular orbitals are formed due to linear combination of atomic orbitals where atomic orbitals are considered as an electron wave and the combination occurs as:
If ψAand ψBare the amplitudes of two atomic orbitals then, they combine by two ways:
1. Constructive interference: when both waves add together as, Φ = ψA+ ψB
2. Destructive interference: when two waves are subtracted as,Φ = ψA- ψB
Now, as their magnitudes are the square of amplitudes so,Φ2= (ψA+ ψB)2= ψA2+ ψB2+ 2ψAψB
While. second equation is ,Φ'2= (ψA- ψB)2= ψA2+ ψB2- 2ψAψB
Φ2 ψA2+ ψB2
Here, we see that, two new molecular orbitals formed where, constructive interference gives bonding MO and destructive interference gives antibonding MO.
The electron density is increased in bonding MO as the electrons are maximum found in bonded region while the probability is minimum in antibonding MO and so here the electron density is minimum.
So, antibonding MO has repulsion in atomic orbitals and so it requires much more energy to stabilize them and they are of minimum stability and higher energy.
But in case of bonding MO, the there is already attraction between the atomic orbitals and so they have lower energy and hence maximum stability.
Posted byShubhangini Kumari
Plz xplain as there is minimum electron density in antibonding MO then why , antibonding MO has repulsion in atomic orbitals also why there is attraction in bonding MO as electron density is maximum
using hybridization,explain the shape of BF3 molecules?
Why N2 is more stable than O2. Explain on the basis of Molecular Orbital Theory
Give reason why H2+ ions are more stable than H2- though they have the samebond order.
which has lowest bond angle?
AsCl3, SbCl3, PCl3 , NCl3 ( ANSWER=SbCl3) why???
Which is more paramagnetic N2 or N22- ?
Explain the resonance structures of CO2 & CO2-3 ?
why co-ordinate bond is called semi-polar bond
How to find out the geometry of ClO4-
What are electron deficient compounds? Are BCl3 and SiCl4 electron deficient species?Explain.
the states of hybridization of boron and oxygen atoms in boric acid(H3BO3) ARE resp.
a...sp3 and sp2
b.. sp2 and sp3
c.. sp2 and sp2
d.. sp3 and sp3
what is trivalent bond?
Explain why NH3 is pyramidal but BF3 is trigonal planar in structure ???
Which of the following statements is / are true for P4S3 molecule ?
(A) It conatins six P-S bonds and three P-P bonds
(B) It contains six P-S bonds and ten lone pairs.
(C) It has all atoms sp3 hybridised.
(D) It contains six P-P bonds and ten lone pairs.
sp2 hybridisation structure of C2H4????
resonance averages the bond characteristics as a whole. plz explain.....
how to find Na and Nb in any molecule like Li2,C2,He2 like that?????????? ans me quick
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