Hydrogen And Its Compounds Question 23
Question: Calgon used as a water softener is
Options:
A) $ Na_2[Na_4{{(PO_3)}_6}] $
B) $ Na_4[Na_2{{(PO_3)}_6}] $
C) $ Na_4[Na_4{{(PO_4)}_5}] $
D) $ Na_4[Na_2{{(PO_4)}_6}] $
Show Answer
Answer:
Correct Answer: A
Solution:
[a] The complex salt of metaphosphoric acid sodium hexametaphosphate $ {{(NaPO_3)}_6} $ is known as calgon. It is represented as $ Na_2[Na_4{{(PO_3)}_6}] $
BETA
