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For a given solution pH = 6.9 at 60°C where Kw = 10–12. The solution is :-
The charge of As2S3 sol is due to the adsorbed of
One mole of KMnO4 is used for complete oxidation of FeSO4, FeC2O4 and H2C2O4 in acedic medium respectively and separately. Pick up the correct statement :-
In complex [Z(SO4)(NH3)4]Cl, the coordination number of 'Z' and denticity of SO4–2 is respectively :
A lanthanoid has 'n' unpaired electrons and another lanthanoid has (14-n) unpaired electrons. It means generally :-
Which of the following set of molecules give same osazone when reacted with excess of phenylhydrazine :-
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