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
    $Mg(HCO_3)_2$ and $MgCO_3$
  • B
    $Ca(HCO_3)_2$ and $CaO$
  • C
    $Mg(HCO_3)_2$ and $Mg(OH)_2$
  • D
    $Ca(HCO_3)_2$ and $Ca(OH)_2$

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Similar Questions

Hardness of water is due to the presence of salts of

Give reason: Hard water is not suitable for washing clothes.

Which of the following properties is less for $D_2O$ than $H_2O$?

Match List $I$ with List $II$ and select the correct answer using the codes given below the lists:
$1.$ Heavy water $a.$ Bicarbonates of $Mg$ and $Ca$ in water
$2.$ Temporary hard water $b.$ No foreign ions in water
$3.$ Soft water $c.$ $D_2O$
$4.$ Permanent hard water $d.$ Sulphates and chlorides of $Mg$ and $Ca$ in water

Which of the following statements is $INCORRECT$?

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