SolutionHard
Question
An aqueous solution of a salt X turns blood red on treatment with SCN− and blue on treatment with K4[Fe(CN)6]. X also gives a positive chromyl chloride test. The salt X is :
Options
A.CuCl2
B.Cu(NO3)2
C.FeCl3
D.Fe(NO3)3
Solution
FeCl3 gives chromyl chloride test,
Fe3+ + SCN- → blood red color.
and Fe3+ + K4[Fe(CN)6] → Fe4[Fe(CN)6]3
(blue)
Fe3+ + SCN- → blood red color.
and Fe3+ + K4[Fe(CN)6] → Fe4[Fe(CN)6]3
(blue)
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