A) \[H{{g}^{2+}}\]
B) \[B{{i}^{3+}}\]
C) \[P{{b}^{2+}}\]
D) \[C{{u}^{+}}\]
Correct Answer: B
Solution :
\[Bi{{\left( N{{O}_{3}} \right)}_{3}}\left( aq \right)\text{ }+\text{ }3KI\left( aq \right)~\xrightarrow[{}]{{}}Bi{{I}_{3}}\left( s \right)+\text{ }\underset{(Black)}{\mathop{3KN{{O}_{3}}\left( aq \right)}}\,\] \[Bi{{I}_{3}}\left( s \right)+KI\left( aq \right)~K\xrightarrow[{}]{{}}\underset{Orange\,Colour}{\mathop{\left[ Bi{{I}_{4}} \right]}}\,\]
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