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Which one of the following statements about a zeolite is false

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By Expert Faculty of Sri Chaitanya
a
They have cage like structure which enables them to take up small molecules
b
They are used as cation exchangers
c
Zeolites are alumino silicates having three dimensional network
d
Some of the  units are replaced by  and  ion in zeolites
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detailed solution

Correct option is D

→ Zeolite have cage like structure. Those cages helps to remove small molecules like H2O.→ They removes the cations [Ca+2 & Mg+2] which causes hardness to the hardwater i.e., They are used as cation exchangers.→ Zeolite are aluminium silicates having three dimensional network structure.→ Zeolite are formed by the replacement of Si+4 ions by Al+3 ions.


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