What products are obtained when beryllium oxide is treated separately with aq. HCl and aq. NaOH solutions…

What products are obtained when beryllium oxide is treated separately with aq. HCl and aq. NaOH solutions respectively?
  1. $\mathrm{BeCl}_2$ and $\mathrm{Be}(\mathrm{OH})_2$
  2. $\mathrm{BeCl}_2$ and $\mathrm{Na}_2 \mathrm{BeO}_4$
  3. $\mathrm{Be}(\mathrm{OH})_2$ and $\mathrm{BeCl}_2$
  4. $\mathrm{BeCl}_2$ and $\mathrm{Na}_2 \mathrm{BeO}_2$

Solution

$\begin{aligned} & \mathrm{BeO}+2 \mathrm{HCl}_{(\mathrm{aq})} \longrightarrow \mathrm{BeCl}_2+\mathrm{H}_2 \mathrm{O} \\ & \text { Beryllium chloride } \\ & \mathrm{BeO}+\mathrm{NaOH}_{(\mathrm{aq})} \underset{\text { Sodium beryllate }}{\longrightarrow} \mathrm{Na}_2 \mathrm{BeO}_2 \end{aligned}$

Asked in: MHT CET 2024 (16 May Shift 2)

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