Transition and InnerTransition Elements - Result Question 91
####18. The reaction of zinc with dilute and concentrated nitric acid, respectively, produce
(a) $NO _2$ and $NO$
(b) $NO$ and $N _2 O$
(c) $NO _2$ and $N _2 O$
(d) $N _2 O$ and $NO _2$
(2016 Main)
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Solution:
- $Zn+\underset{\text { (Conc.) }}{4 HNO _3} \longrightarrow Zn\left(NO _3\right) _2+2 H _2 O+2 NO _2$
$4 Zn+10 HNO _3 \longrightarrow 4 Zn\left(NO _3\right) _2+N _2 O+5 H _2 O$
(Dil.)
