Which one of the following statements about the zeolite is false?
Which one of the following statements about the zeolite is false?
They are used as cation exchangers
They have open structure which enables them to take up small molecules
Zeolites are aluminosilicates having three dimensional network
Some at the $\mathrm{SiO}_4^{4-}$ units are replaced by $\mathrm{AlO}_4^{5-}$ and $\mathrm{AlO}_6^{9-}$ ions in zeolites
Solution
The zeolites are noted for their ability towards ion-exchange and reversible dehydration. They have a framework structure that encloses interconnected cavities occupied by large metal cations (positively charged ions) and water molecules.
Related Theory
Zeolite are hydrated aluminosilicate minerals that contain alkali and alkaline-earth metals. They have a honeycomb-like structure, which makes them shape-selective catalysts. They have an extended 3D-network of silicates in which some silicon atoms are replaced by aluminium atoms giving Al-O-Si framework.