MCQ
Borax in its crystal possess
- A$3$ tetrahedral unit
- ✓$2$ tetrahedral and $2$ planar triangular units
- C$3$ tetrahedral and $2$ planar triangular units
- Dall tetrahedral units
✓
Answer
Correct option: B.
$2$ tetrahedral and $2$ planar triangular units
b
Borax $\left[\mathrm{Na}_{2}\left(\mathrm{B}_{4} \mathrm{O}_{5}(\mathrm{OH})_{4} \cdot 8 \mathrm{H}_{2} \mathrm{O}\right]\right.$
Borax $\left[\mathrm{Na}_{2}\left(\mathrm{B}_{4} \mathrm{O}_{5}(\mathrm{OH})_{4} \cdot 8 \mathrm{H}_{2} \mathrm{O}\right]\right.$
$\mathrm{Sp}^{2} \rightarrow$ trigonal planar
$\mathrm{Sp}^{3} \rightarrow$ tetrahedral
In borax $2\left(\mathrm{Sp}^{2}\right)$ trigonal planar and $2\left(\mathrm{Sp}^{3}\right)$ tetrahedral
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