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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!!!!!!!!!!!!!!!!!
How many lone pairs are there in BrF5 ?
what are the limitations of valence bond theory?
Using VSEPR theory draw the structure of XeOF2 and ICl4-
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 ?
OUT OF MgCl2 and MgO , which one has more lattice energy and why ??
NH3 has higher boiling point than PH3. Why?
WHAT IS HYBRIDISATION OF C2H2 WITH DIAGRAM
what does canonical structure mean?
WHY IS KO2 PARAMAGNETIC????
According to VBT,, which of the following overlapping results pi - type covalent bond in O 2 molecule formation,, when Z - axis is internuclear axis??
I.. 2s – 2s II.. 2p x – 2p x III.. 1s – 1s IV.. 2p y – 2p y V.. 2p z – 2p z
molecular orbital of o2,
Silver halides have low solubilities in water as compared to alkali metals halides. Explain
WHAT is the formal charge of CO3 ??
What is the limitation and advantage of hybridization ?
BF3 is non polar but NF3 is polar why?
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 ?
what is the energy level diagram of N2 and F2?
why pz-pz bond is sigma bond but px-px, py-py px-py bonds are pi bonds ?
write lewis structure of na2so4
what is the oxidation number of sulphur in H2SO5 plz give explanation in detail
what is meaning of equilibrium distance
Write the MO configuration of the following species-
O2 , O2+ , O2- , O22-
Arrange them in order of their decreasing stabilities?
explain the structure of PCl5
suggest working models in chemistry
why is glycerol more viscous than water?
Discuss the shape of SiCl4, AsF5, H2S, PH3 using VSEPR theory ?
HF is polar while F2 is nonpolar.Explain
Explain the geometry and hybridisation of [Ni(CN)4]2-????
DRAW THE STRUCTURE OF C2H4 C2H2 (ELECTRONIC DOT STRUCTURE
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
average bond enthalpy of water is given by: 502+427/2=464.5 KJ/mol. Tell me what to call these no. 502 and 427 and where do they came from?
arramge in the increasing order of bond angle
NH3, NH4+, NH2-
Explain hybridisation in IF6
explain y BeH2 molecule has zero dipole moment although the Be-H bonds are polar...?
Which out of H2O and H2S has higher boiling point and why ?
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?????
Why N2 is more stable than O2. Explain on the basis of Molecular Orbital Theory
Write the molecular orbital configuration of N2 and N2+ . Also calculate their bond order?
plz explain me the lewis dot stucture of NF3 ,CO3 AND HNO3
For the reaction :-
AlCl3+ NaOH ----> Al(OH)3+ NaCl
If initially 1 mole of each reactant is taken then the number of moles of AlCl3remained after the xompletion of reaction is :
(D) None of these.
Is HI a covalent compound or ionic compound?
what is the full form of VSEPR?
why KHF2 is known but KHCl2 is not known?
1. Are sp3d4 and sp3d5 hybridizations possible? Why/Why not?
2. What shapes would sd (or sd2) hybridizations take?
what is positive nd negative electron gain enthalpy
is boric acid a protic acid ,,,,,,,,explain me fast,,,,,i hav my xam on mondayyyyyy
resonance averages the bond characteristics as a whole. plz explain.....
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 ?
using hybridization,explain the shape of BF3 molecules?
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???
Explain the resonance structures of CO2 & CO2-3 ?
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
Explain why NH3 is pyramidal but BF3 is trigonal planar in structure ???
sp2 hybridisation structure of C2H4????
NaCl gives a white precipitate with AgNO3 solution but CCl4 does not. Why?
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