Chemical Bonding and Molecular Structure
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New answer posted
4 weeks agoContributor-Level 10
σ1s < 1s < 2s < 2s < (2px = 2py) < 2pz < (2px = π2py) < *2pz is the correct order of energy of MO for homo nuclear diatomic species N?
New answer posted
4 weeks agoContributor-Level 10
AlCl? , BeCl? and PCl? does not obey octet rule.
AlCl? and BeCl? both are electron-deficient species having six electrons in valence shell of central atom whereas PCl? has ten electrons in valence shell of phosphorous.
The structures are :
New answer posted
4 weeks agoBeginner-Level 5
The concept of delocalization or resonance can be explained for quantum mechanical atomic models in which electrons are considered to be spread over the entire molecular orbital.
The fundamental assumption of the valence bond theory contradicts the delocalization. The valence bond theory assumes that a covalent bond forms from the overlap of atomic orbitals on adjacent atoms, and electron density is localized between two specific nuclei.
That is why VBT cannot explain energy stabilization due to the resonance property.
New answer posted
a month agoContributor-Level 9
o Alcoholic potassium hydroxide (Alc KOH):- used for β - elimination.
o Pd / BaSO? : - Lindlar's Catalyst.
New question posted
a month agoNew answer posted
a month agoContributor-Level 9
Species Bond order
(A) No+3
(B) NO2+2.5
(C) NO-2
(D) NO 2.5
Bond order strength is proportional to bond order.
New answer posted
a month agoContributor-Level 10
Hess's law
ΔH_solution = ΔH_lattice + ΔH_hydration
4 = 788 + ΔH_hydration
ΔH_hydration = -784 kJ mol? ¹
New answer posted
a month agoContributor-Level 10
Species | Sigma bonds | lone pairs | Hybridisation |
SF4 | 4 | 1 | Sp3d |
IF5 | 5 | 1 | Sp3d2 |
2 | 0 | Sp | |
4 | 0 | Sp3 |
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