Thursday, June 25, 2020
What are necessary and sufficient conditions for coordination complex to show "optical isomerism"?
The necessary and sufficient condition to show optical isomerism is , the complex as the whole must be asymmetrical by the absence of element of symmetry , plane of symmetry (POS) and center of symmetry ( COS).
What are condition for geometrical isomerism in coordination compounds?
Among all type of geometries in coordination compounds, only squar planer , octahedral and dodecahedral will show geometrical isomerism. The necessary and sufficient conditions is for every position of ligands there must be at least one "CIS" (separated by 90°) and one must be "TRANS" (seperated by 180°).
What is the temperature at density of water is maximum ?
The maximum density of water is an exceptionally give a irregular trends, which reaches a density peak at 3.98 °C ~ 4.00℃ or (39.16 °F).
Arrange the silicon halides into decreasing order of Lewis acids Character? SiF3, SiCl3, SiBr3, SiI3
In case of silicone halides inductive effect dominate over back bonding hence lewis acid character decided by inductive effect.
Hence order of lewis acid character SiF3 >SiCl3 > SiBr3 > SiI3
What is d-orbital resonance?
D-ORBITAL RESONANCE:
It is a phenomenon in which electrons of ms and np get delocalized to vacant nd orbital because this availability of vacant d orbital to expect back bond get reduced .
In those molecules species where d orbital’s resonance exist of back Bonding is decreased.
It is a phenomenon in which electrons of ms and np get delocalized to vacant nd orbital because this availability of vacant d orbital to expect back bond get reduced .
In those molecules species where d orbital’s resonance exist of back Bonding is decreased.
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