JEE PYQ: Hydrogen Question 22
Question 22 - 2019 (12 Apr Shift 2)
The temporary hardness of a water sample is due to compound X. Boiling this sample converts X to compound Y. X and Y, respectively, are:
(a) $\text{Mg(HCO}_3)_2$ and $\text{Mg(OH)}_2$ (b) $\text{Ca(HCO}_3)_2$ and $\text{Ca(OH)}_2$ (c) $\text{Mg(HCO}_3)_2$ and $\text{MgCO}_3$ (d) $\text{Ca(HCO}_3)_2$ and CaO
Show Answer
Answer: (a)
Solution
$\text{Mg(HCO}_3)_2 \xrightarrow{\text{Boiling}} \text{Mg(OH)}_2 \downarrow + 2\text{CO}_2 \uparrow$.
BETA
