A) \[CdC{{l}_{2}}\]
B) \[CuS{{O}_{4}}\cdot 5{{H}_{2}}O\]
C) \[MnS{{O}_{4}}\cdot 7{{H}_{2}}O\]
D) \[NiS{{O}_{4}}\cdot 7{{H}_{2}}O\]
Correct Answer: A
Solution :
\[CdC{{l}_{2}}\] has \[C{{d}^{2+}}\] ion \[(4{{d}^{10}})\],which is colourless.
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