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Q. Define Ionisation Isomerism?
Ionisation Isomerism: when coordinated ions exchange positions with ions present in the lattice position, we get ionisation isomers. Thus compounds having the same chemical composition give different ions in solution For example, a compound [Co(NH3)5BrS04 which is violet in colour yields [co(NH3)5Br2+ and SO2-4ions in solution, whereas a red isomer of the compound [co(NH3)5Br2produces [CO(NH3)5SO4+ and Br ions in solution. Other examples are:
[Co(en)2(N02)CIlN02 and [Co(en) 2 (N02]CI
[Pt(NH3)5cI2IBr2 and [Pt(NH3)4Br2]Cl2 etc.
Most polar solvents have Lewis base or donor properties resulting from lone-pair electrons. Good donor solvents inbuilt water, pyridine and ammonia, and are efficient at solvating
Q. Show the properties of Tetrahydrido borate? Tetrahydrido borate anion BH - 4 has a tetrahedral structure which can be explained on the basis of sp 3 hybridisation of boron
Separation methods: The present unit gives an introduction to the course on separation methods. It highlights the utility of separations within the analysis and recovery of pu
alkali metals belong to s-block in the periodic table ,why?
Account for the soft nature of rubber material
Gustation - The Sense of Taste The word ‘taste' means not only a sensory response to the soluble materials in the mouth but also aesthetic appreciation. It has been noted many
Which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon Ans) We know the energy of electron goes on to become more negative as it reache
Q. How can we obtain Boron? Boron is- obtained by the red-action of B 2 O 3 with magnesium or sodium B 2 0 3 is first prepared by strongly katingH 3 B0 3 which is obtained b
The mass number of an anion, X 3- is 14. If there are ten electrons in the anion, the number of neutrons in the nucleus of atom, X 2 of the element will be: (1) 10
Saponification value - Analysis of oils and fats It is quantify of fatty acids denote as esters in oils and fats. It is described as the number of milligrams of KOH needed to s
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