Which of following metal produces N₂O on reaction with 20% HNO₃

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General Principles and processes of Isolation of Elements

easy

Which of the following metal produces $N_2O$ on reaction with $20\%\ HNO_3$

A

$Sn$

B

$Pt$

C

$Zn$

D

$Pb$

Solution

$Fe$ and $Zn$ produces $N _2 O$ gas with $20 \,\%\, HNO _3$

$M +$ dil. $HNO _3\,(20\, \%) \,\rightarrow M \left( NO _3\right)_2+ N _2 O$

where, $M$ is metals which are more electropositive than hydrogen except $Sn$ and $Pb$.

$Sn +\operatorname{dil} . HNO _3 (20 \,\%) \rightarrow Sn \left( NO _3\right)_2+ NH _4 NO _3$

Standard 12

Chemistry

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