Increasing basic properties of \( \mathrm{TiO}_{2}, \mathrm{ZrO}_{2} \), and \( \mathrm{HfO}_{2}...

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Increasing basic properties of \( \mathrm{TiO}_{2}, \mathrm{ZrO}_{2} \), and \( \mathrm{HfO}_{2} \) are in order:
(a) \( \mathrm{TiO}_{2}\mathrm{ZrO}_{2}\mathrm{HfO}_{2} \)
(b) \( \mathrm{HfO}_{2}\mathrm{ZrO}_{2}\mathrm{TiO}_{2} \)
(c) \( \mathrm{HfO}_{2}\mathrm{TiO}_{2}\mathrm{ZrO}_{2} \)
(d) \( \mathrm{ZrO}_{2}\mathrm{TiO}_{2}\mathrm{HfO}_{2} \)
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