MCQ
Carborundum is a
- Amolecular solid
- ✓covalent solid
- Cionic solid
- Damorphous solid
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$\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{\,\,{R_1}} \\
|
\end{array}} \\
{R - C - X} \\
| \\
{\,\,{R_2}}
\end{array}\xrightarrow{{HOH}}\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{\,\,{R_1}} \\
|
\end{array}\,\,\,\,\,} \\
{R - C - OH} \\
{|\,\,\,} \\
{{R_2}}
\end{array}$
Which substrate will give maximum racemisation?
(Given atomic number: $\mathrm{Sc}: 21, \mathrm{Ti}: 22, \mathrm{~V}: 23$, $\mathrm{Cr}: 24, \mathrm{Mn}: 25, \mathrm{Fe}: 26, \mathrm{Co}: 27, \mathrm{Ni}: 28, \mathrm{Cu}: 29$, $\mathrm{Zn}: 30)$