A) \[Au{{\left( N{{O}_{3}} \right)}_{2}},\,\left[ Pt{{\left( N{{O}_{3}} \right)}_{2}} \right]\]
B) \[H\left[ AuC{{l}_{4}} \right],\,{{H}_{2}}\left[ PtC{{l}_{6}} \right]\]
C) \[{{\left[ AuC{{l}_{6}} \right]}^{2-}},\,{{\left[ PtC{{l}_{2}} \right]}^{2-}}\]
D) \[{{\left[ Au{{\left( N{{O}_{3}} \right)}_{4}} \right]}^{+}},\,{{\left[ Pt{{\left( N{{O}_{3}} \right)}_{6}} \right]}^{2-}}\]
Correct Answer: B
Solution :
\[Au+\underset{From\,aqua\,regia}{\mathop{3\left[ Cl \right]}}\,\to AuC{{l}_{3}}\xrightarrow{HCl}H\left[ AuC{{l}_{4}} \right]\]\[Pt+\underset{From\,aqua\,regia}{\mathop{4\left[ Cl \right]}}\,\to PtC{{l}_{4}}\xrightarrow{HCl}{{H}_{2}}\left[ PtC{{l}_{6}} \right]\]
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