MCQ
How many resonance forms can be written for the nitrate ion, $(NO^-_3)$ ?
- A$1$
- B$2$
- C$3$
- D$4$

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$C{H_3} - CH = C{H_2} + HBr\xrightarrow{{{{({C_6}{H_5}CO)}_2}{O_2}}}$
$N_2 + 3H_2 \rightleftharpoons 2NH_3 \,;$ $K_1$
$N_2 + O_2 \rightleftharpoons 2NO\,;$ $K_2$
$H_2 + 2 O_2 \rightleftharpoons H_2O\,;$ $K_3$
The equilibrium constant $(K)$ of the reaction :
$2NH_3 + \frac{5}{2} \overset K \leftrightarrows 2NO + 3H_2O$

$(1)$ It is Diamagnetic in nature
$(2)$ It is a good oxidising agen
$(3)$ It is colourless compound