Which of the following oxides reacts with HCl and NaOH ?

Question

Which of the following oxides reacts with HCl and NaOH ? (A)  CaO  (B)  ZnO  (C)  N2O5  (D)  CO2

Tardigrade Admin · Accepted Answer

Z n O is an amphoteric oxide, it dissolves both in acid and alkalise to give zinc salt and zincates respectively. ZnO +2 HCl arrow ZnCl 2+ H 2 O ZnO +2 NaOH arrow underset text sodium Na 2 ZnO 2+ H 2 O

Q. Which of the following oxides reacts with $H Cl$ and $N a O H$ ?

$C a O$

$Z n O$

$N_{2} O_{5}$

$C O_{2}$

$Z n O$ is an amphoteric oxide, it dissolves both in acid and alkalise to give zinc salt and zincates respectively.
$Z n O + 2 H Cl \to Z n C l_{2} + H_{2} O$
$Z n O + 2 N a O H \to sodium N a_{2} Z n O_{2} + H_{2} O$

Q. Which of the following oxides reacts with HCl and NaOH ?

CaO

ZnO

N2​O5​

CO2​