MCQ
Which is an amphoteric oxide
- ✓$ZnO$
- B$CaO$
- C$BaO$
- D$SrO$
$ZnO + {H_2}S{O_4} \to ZnS{O_4} + {H_2}O$
$ZnO + 2NaOH \to N{a_2}Zn{O_2} + {H_2}O$
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(image) $\xrightarrow[{Pd - BaS{O_4}}]{{{H_2}}}\,A$
The product $A$ is
$(I)\,\,Zn\,+\,Conc. HNO_3\,(hot) \to Zn(NO_3)_2\,+\,X\,+\,H_2O$
$(II)\,\,Zn\,+\,dil. HNO_3\,(Cold) \to Zn(NO_3)_2\,+\,Y\,+\,H_2O$
Compound $X$ and $Y$ are respectively
