Question

Which of the following represents calgon?

• A. $Na_{2}Al_{2}Si_{2}O_{8}$
• B. $Mg_{3}(PO_{4})_{2}$
• C. $Na_{2}\lbrack Na_{4}(PO_{3})_{6}\rbrack$
• D. $Na_{2}\lbrack Mg_{2}(PO_{3})_{6}\rbrack$

Answer 1

Answer: (C)

$Na_{2}\lbrack Na_{4}(PO_{3})_{6}\rbrack$

Answer 2

: The complex salt of metaphosphoric acid, sodium hexametaphosphate $(NaPO_{3})_{6}$is known as calgon. It is represented as $Na_{2}\lbrack Na_{4}(PO_{3})_{6}\rbrack$