pBlock ElementsII - Result Question 138

####23. A pale blue liquid obtained by equimolar mixture of two gases at $-30^{\circ} C$ is

(a) $N _2 O$

(b) $N _2 O _3$

(c) $N _2 O _4$

(d) $N _2 O _5$

$(2005,1 M)$

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Solution:

  1. Equimolar amounts of $NO$ and $NO _2$ at $-30^{\circ} C$ gives $N _2 O _3(l)$ which is a blue liquid.

$$ NO(g)+NO _2(g) \stackrel{-30^{\circ} C}{\longrightarrow} \underset{(\text { Blue })}{N _2 O _3(l)} $$



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