MCQ
Which of the following oxides is amphoteric?
- ACoO
- ✓ZnO
- CFeO
- D$CrO _3$
✓
Answer
Correct option: B.
ZnO
b
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Fruity smell is given by
The major product of the following reaction is
If freezing point of aqueous solution of salt $MX_4$ $(\alpha = 90\%)$ is $-\,3\,^oC$ then it's boiling point will be ........ $^oC$. (Assume it is $100\%$ ionise at boiling temperature and $k_f = 1.86\,km^{-1}$, $k_b = 0.52\, km^{-1}$ )
→The compound $I$ and $II$ are related as
→$\mathop {\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{COOH\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{H - C - OH\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}} \\
{Br - C - H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,\,COOC{H_3}}
\end{array}}\limits_{(I)} $ $\mathop {\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,COOC{H_3}\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{H - C - Br\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}} \\
{HO - C - H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,\,\,\,\,\,COOH\,\,\,\,\,\,\,\,}
\end{array}}\limits_{(II)} $
The degree of dissociation in a weak electrolyte increases
$298 \mathrm{~K}$. It could be increased by :
→What is electronic arrangement of metal atom/ion in octahedral complex with $d^4$ configuration, if $\Delta _0 <$ pairing energy
→Find $(x)$ .
→The forces acting between noble gas atoms are
Which of the following statement is correct