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Chemistry
The formula of Calgon, used for water softening is
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Q. The formula of Calgon, used for water softening is
Rajasthan PMT
Rajasthan PMT 2008
A
$ N{{a}_{2}}[N{{a}_{4}}{{(P{{O}_{3}})}_{6}}] $
B
$ N{{a}_{4}}[N{{a}_{2}}{{(P{{O}_{3}})}_{6}}] $
C
$ N{{a}_{2}}[N{{a}_{4}}{{(P{{O}_{4}})}_{5}}] $
D
$ N{{a}_{4}}[N{{a}_{4}}{{(P{{O}_{4}})}_{6}}] $
Solution:
Calgon is used for water softening. Its formula is $ N{{a}_{2}}[N{{a}_{4}}{{(P{{O}_{3}})}_{6}}] $ .