MCQ
At zero kelvin, most of the ionic crystals possess:
- AFrenkel defect
- BSchottky defect
- Cmetal excess defect
- ✓No defect
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$A$ $+$ $\begin{array}{*{20}{c}}
{C{H_3} - C - C{H_3}} \\
{||\,} \\
{O\,\,\,}
\end{array}$ $→$ $B$ $'B'$ is