A) 3
B) 4
C) 5
D) 6
Correct Answer: C
Solution :
(i) \[\underset{\begin{smallmatrix} \text{Nitric oxide } \\ \text{Colourless gas} \end{smallmatrix}}{\mathop{NO\,\,\,\,}}\,\] (ii) \[\underset{\begin{smallmatrix} \text{Nitrous oxide} \\ \text{Colourless gas} \end{smallmatrix}}{\mathop{{{N}_{2}}O\,\,\,}}\,\] (iii) \[\underset{\begin{smallmatrix} \text{Dinitrogen } \\ \text{trioxide Blue} \\ \text{liquid} \end{smallmatrix}}{\mathop{{{N}_{2}}{{O}_{3}}}}\,\] (iv) \[\underset{\begin{smallmatrix} \text{Dinitrogen} \\ \text{tetraoxide } \\ \text{colourless liquid } \end{smallmatrix}}{\mathop{{{N}_{2}}{{O}_{4}}\,\,\,\,\,\,\,}}\,\] (v) \[\underset{\begin{smallmatrix} \text{Dinitrogen} \\ \text{pentaoxide} \\ \text{colourless gas} \end{smallmatrix}}{\mathop{{{N}_{2}}{{O}_{5}}\,\,\,\,\,}}\,\]
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