JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
Which of the following compounds is not colored yellow ?
- A \((NH_4)_3 [As (Mo_3O_{10})_4]\)
- B \(BaCrO_4\)
- C \(Zn_2[Fe(CN)_6]\)
- D \(K_3[Co(NO_2)_6]\)
Answer & Solution
Correct Answer
(C) \(Zn_2[Fe(CN)_6]\)
Step-by-step Solution
Detailed explanation
\(Z n_{2}\left[F e(C N)_{6}\right], K_{3}\left[C o\left(N O_{2}\right)_{6}\right] \) and \(\left(N H_{4}\right)_{3} A s\left[M o_{3} O_{l 0}\right]_{4}\) show color due to d-d transition while \(B a C r O_{4}\) is coloured due to charge transfer phenomenon. Further according to…
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