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Q. An example of halide ore is

NTA AbhyasNTA Abhyas 2020General Principles and Processes of Isolation of Elements

Solution:

Cryolite $\left(\mathrm{Na}_3 \mathrm{AlF}_6\right) \rightarrow$ Halide ore

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$\text{B}\text{a}\text{u}\text{x}\text{i}\text{t}\text{e} \, \text{A}\text{l}_{2}\text{O}_{3}.2\text{H}_{2}\text{O} \rightarrow \text{O}\text{x}\text{i}\text{d}\text{e} \, \text{o}\text{r}\text{e}$