Which of the following oxides is not expected to react with sodium hydroxide ?

Which of the following oxides is not expected to react with sodium hydroxide ?
  1. $\mathrm{BeO}$
  2. $\mathrm{B}_2 \mathrm{O}_3$
  3. $\mathrm{CaO}$
  4. $\mathrm{SiO}_2$

Solution

Since $\mathrm{CaO}$ itself is basic, It will not react with $\mathrm{NaOH}$

Asked in: NEET 2009 (Mains)

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