\( \mathrm{ZnO} \) is respectively acting as, in the following P re...

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\( \mathrm{ZnO} \) is respectively acting as, in the following
P reactions:

W
I. \( \mathrm{ZnO}+\mathrm{Na}_{2} \mathrm{O} \rightarrow \mathrm{Na}_{2} \mathrm{ZnO}_{2} \)
II. \( \mathrm{ZnO}+\mathrm{CO}_{2} \rightarrow \mathrm{ZnCO}_{3} \)
(1) acid \& base
(2) acid \& acid
(3) base \& base
(4) base \& acid
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