To a solution of an unknown compound, a little dilute tetraoxosulphate (VI) acid was added with some freshly prepared iron (II) tetraoxosulphate (VI) solution. The brown ring observed after the addition of a stream of concentrated tetraoxosulphate (VI) acid confirmed the presence of?
a
CO\(^{2-}_{3}\)
b
Cl-
c
SO\(_{3}^{2-}\)
d
NO\(^{2-}_{3}\)
Explanation
Correct Option
dVideo Explanation
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