Analytical ChemistryHard
Question
CoCl2 + KNO2 + CH3COOH → [X] + H2O + KCl + CH3COOK + NO
(Unbalenced equation)
(Unbalenced equation)
Options
A.X is a yellow crystalline solid insoluble in water.
B.X is a green coloured compounds knwon as kinman′s green.
C.IUPAC name of X is potassium hexanitrito -N- cobaltate (II)
D.The compound X is an inner orbital complex.
Solution
Co2+ + 7NO2- + 3K+ + 2H+ → K3[Co(NO2)6] ↓ (yellow) + NO ↓ + H2O.
So [X] is K3[Co(NO2)]6. It is called Fischer′s reagent ; [Co(III)(NO2)6]3- has d2sp3 hybridisation and is diamagnetic. It′s IUPAC name is potassium hexanitrito - N - cobaltate(III).
So [X] is K3[Co(NO2)]6. It is called Fischer′s reagent ; [Co(III)(NO2)6]3- has d2sp3 hybridisation and is diamagnetic. It′s IUPAC name is potassium hexanitrito - N - cobaltate(III).
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Mg is not precipitated in V group because :...Consider the following statements, S1 : sulphide does give yellow precipitate with Cd(NO3)2 in aqueous solution. S2 : aq...A black sulphide is formed by the action of H2S on :...A charge Q is uniformly distributed over the surface of non-conducting disc of radius R. The disc rotates about an axis ...Which onr amongst the following pairs of ions cannot be separated by H2S in dilute HCL ?...