Analytical ChemistryHard
Question
An original solution of an inorganic salt in dilute HCl gives a brown colouration with potassium hexacyanidoferrate (III) and reddish brown colouration with sodium acetate solution. The cation of the salt is :
Options
A.Ni2+
B.Fe3+
C.Cu2+
D.none
Solution
Fe3+ + [Fe(CN)6]3- → Fe[Fe(CN)6] brown colouration
3Fe3+ + 6CH3COO- + 2H2O ⇋ [Fe3(OH)2(CH3COO)6]+ + 2H+.
3Fe3+ + 6CH3COO- + 2H2O ⇋ [Fe3(OH)2(CH3COO)6]+ + 2H+.
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Which of the statements is not true ?...When chlorine (Cl2) water in excess is added to a salt solution containing chloroform, chloroform layer turns pale yello...The composition of golden spangles is :...Which of the following metal cation is reduced from its higher oxidation state (+2) to (+1) by both KI solution and exce...Which of the following statement(s) is /are false ?...