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Calgon is used for water treatment. Which of the following statement is NOT true about Calgon?

Option 1 -

It is also known as Graham's salt.

Option 2 -

It is polymeric compound and is water soluble.

Option 3 -

It doesn't remove Ca2+ ion by precipitation.

Option 4 -

Calgon contains the 2nd most abundant element by weight in the Earth's crust.

0 2 Views | Posted a month ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    a month ago
    Correct Option - 4


    Detailed Solution:

    It does not contains 2nd most abundant element by weight in earth crust because that is Si Calgon ->Na2 [Na4 (PO3)6] → W a t e r     s o l u b l e 2 N a + [ N a 4 ( P O 3 ) 6 ] 2 −

    → C a 2 + 2 N a + [ N a 2 C a ( P O 3 ) 6 ] 2 −

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