A) \[KN{{O}_{2}}\]
B) \[ZnB{{r}_{2}}\]
C) \[NaN{{O}_{3}}\]
D) \[FeC{{l}_{2}}\]
Correct Answer: A
Solution :
\[2KN{{O}_{2}}+{{H}_{2}}S{{O}_{4}}\xrightarrow[{}]{{}}{{H}_{2}}S{{O}_{4}}+HN{{O}_{2}}\] \[3HN{{O}_{2}}\xrightarrow[{}]{{}}HN{{O}_{3}}+{{H}_{2}}O+2NO\] \[2NO+{{O}_{2}}(air)\xrightarrow[{}]{{}}\underset{\begin{smallmatrix} Reddish \\ brown \\ colour \end{smallmatrix}}{\mathop{2N{{O}_{2}}\uparrow }}\,\]
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