Which one of the following compounds is not coloured [AIIMS 1997]

1.	Which one of the following compounds is not coloured [AIIMS 1997]
A.	\[N{{a}_{2}}CuC{{l}_{4}}\]
B.	\[N{{a}_{2}}CdC{{l}_{4}}\]
C.	\[{{K}_{4}}Fe{{(CN)}_{6}}\]
D.	\[{{K}_{3}}Fe{{(CN)}_{6}}\]
Answer» C. \[{{K}_{4}}Fe{{(CN)}_{6}}\]

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Which one of the following compounds is not coloured [AIIMS 1997]

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