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Which statement about zeolite is false ?

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By Expert Faculty of Sri Chaitanya
a
They are used as cation exchanger
b
They have open structure which enables them to take up small molecules
c
Zeolites are alumino silicates having three dimensional networks
d
Some of the SiO44- units are replaced by AlO45-  and  AlO89- ions in zeolites

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detailed solution

Correct option is D

1, 2 and 3 are characteristics of zeolites.If ‘Al’ atoms replace few silicon atoms in three dimensional network of  SiO2 over all structure known as alumino silicate (Zeolite)


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