What are the products formed when an aqueous solution of magnesium bicarbonate is boiled?

What are the products formed when an aqueous solution of magnesium bicarbonate is boiled?
  1. $\mathrm{MgO}, \mathrm{H}_2 \mathrm{O}, \mathrm{CO}_2$
  2. $\mathrm{Mg}\left(\mathrm{HCO}_3\right)_2, \mathrm{H}_2 \mathrm{O}$
  3. $\mathrm{Mg}(\mathrm{OH})_2, \mathrm{H}_2 \mathrm{O}$
  4. $\mathrm{Mg}, \mathrm{CO}_2, \mathrm{H}_2 \mathrm{O}$

Solution

$\underset{\text { Aqueous solution of magnesium bicarbonate }}{\mathrm{Mg}\left(\mathrm{HCO}_3\right)_2} \stackrel{\Delta}{\longrightarrow} \mathrm{MgO}+\underset{\text { Products }}{\mathrm{H}_2 \mathrm{O}+2 \mathrm{CO}_2}$

Asked in: AP EAMCET 2003

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