Hydrogen And Its Compounds Question 47
Question: When zeolite (Hydrated sodium aluminium silicate) is treated with hard water the sodium ions are exchanged with
[DPMT 2000]
Options:
A) $ O{H^{-}} $ ions
B) $ SO_4^{2-} $ ions
C) $ C{a^{2+}} $ ions
D) $ {H^{+}} $ ions
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Answer:
Correct Answer: C
Solution:
$ \underset{Zeolite}{\mathop{Na_2Al_2Si_2O_8}}.xH_2O+C{a^{+2}}\to $
$ CaAl_2Si_2O_8.xH_2O+2N{a^{+}} $