Verified Solution • 2025–26 Session moderate

QJEEM22Chb184: JEE Main 2022 Chemistry - Class 11 JEEM22Chb184 Solution: Boiling of hard water is helpful in removing the temporary…

Boiling of hard water is helpful in removing the temporary hardness by converting calcium hydrogen carbonate and magnesium hydrogen carbonate to :

Multiple Choice Options

  • A CaCO3 and Mg(OH)2
  • B CaCO3 and MgCO3
  • C Ca(OH)2 and MgCO3
  • D Ca(OH)2 and Mg(OH)2

Step-by-Step Verified Solution

Ca(HCO3)2⟶ΔCaCO3↓+H2O+CO2↑\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2} \stackrel{\Delta}{\longrightarrow} \mathrm{CaCO}_{3} \downarrow+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2} \uparrow

Mg(HCO3)2⟶AMg(OH)2+2CO2↑\mathrm{Mg}\left(\mathrm{HCO}_{3}\right)_{2} \stackrel{\mathrm{A}}{\longrightarrow} \mathrm{Mg}(\mathrm{OH})_{2}+2 \mathrm{CO}_{2} \uparrow

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