Which of the following process permanent hardness of water can be removed, by adding

Sodalime

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Sodiumbicarbonate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Washing soda

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Sodium chloride

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Washing soda
Washing soda removes both the temporary and permanent hardness by converting soluble calcium and magnesium compounds in to insoluble carbonates.

$C a C l_{2} + N a_{2} C O_{3} \to C a C O_{3} ↓ + 2 N a C l$

$C a S O_{4} + N a_{2} C O_{3} \to C a C O_{3} ↓ + N a_{2} S O_{4}$

$C a (H C O_{3})_{2} + N a_{2} C O_{3} \to C a C O_{3} ↓ + 2 N a H C O_{3}$

Suggest Corrections

Similar questions

Both temporary and permanent hardness in water can be removed by the addition of washing soda. Which of the following reactions represents the removal of permanent hardness in water?

Q. Permanent hardness is due to the presence of soluble salts of magnesium and calcium in the form of chlorides and sulphates in water. Permanent hardness of water can be removed by:

Q. Permanent hardness of water can be removed by :

Permanent hardness of water can be removed by adding ____.

Q. Permanent hardness of water is due to the presence of chlorides and salts of calcium and magnesium. It can be removed by using .

Join BYJU'S Learning Program

Which of the following process permanent hardness of water can be removed, by adding

The correct option is C Washing sodaWashing soda removes both the temporary and permanent hardness by converting soluble calcium and magnesium compounds in to insoluble carbonates.CaCl2+Na2CO3→CaCO3↓+2NaClCaSO4+Na2CO3→CaCO3↓+Na2SO4Ca(HCO3)2+Na2CO3→CaCO3↓+2NaHCO3