NEET Chemistry Hydrogen Questions Solved

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Permanent hardness of water can be removed, by adding –

(A) Sodalime

(B) Sodiumbicarbonate

(C) Washing soda

(D) Sodium chloride

Concept Videos :-

#3 | Hard & Soft Water

Concept Questions :-

Hard & Soft Water

(C).  Washing soda removes both the temporary and permanent hardness by converting soluble

        calcium and magnesium compounds into insoluble carbonates. 

                     CaCl2+Na2CO3          CaCO3+2NaCl             CaSO4+Na2CO3            CaCO3+Na2SO4             CaHCO32+Na2CO3            CaCO3+2NaHCO3

Difficulty Level:

  • 10%
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  • 61%
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