Calgon is used for water treatment. Which of the following statement is not true about Calgon? nd 2+ (A) It is also known as Graham’s salt Calgon contains the 2 (B) most abundant element by weight in

Question

Calgon is used for water treatment. Which of the following statement is not true about Calgon? nd 2+

(A) It is also known as Graham’s salt Calgon contains the 2
(B) most abundant element by weight in the Earth’s crust It is polymeric compound and is water soluble
(C) It doesnot remove Ca
(D) ion by precipitation

Prashant Kotian · Accepted Answer

Correct answer: A) IT IS ALSO KNOWN AS GRAHAM’S SALT CALGON CONTAINS THE 2. (1) Sodium hexametaphosphate is also known as Graham’s salt. (2) Calgon is sodium hexametaphosphate (3) Fe is second most abundant metal in earth crust. Calgon does not contain it. (4) It keeps the in solution.

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