Which one of the following statements about the zeolites is false - Vidyadip

MCQ

Which one of the following statements about the zeolites is false

A
Zeolites are aluminosilicates having three dimensional network
✓
Some of the $SiO_4^{ - 4}$ units are replaced by $AlO_4^{ - 5}$ and $AlO_6^{9 - }$ ions in zeolites
C
They are used as cation exchangers
D
They have open structure which enables them to take up small molecules

✓

Answer

Correct option: B.

Some of the $SiO_4^{ - 4}$ units are replaced by $AlO_4^{ - 5}$ and $AlO_6^{9 - }$ ions in zeolites

b
(b) Zeolite have $Si{O_4}$ and $Al{O_4}$ tetrahedrons linked together in a three dimensional open structure in which four or six membered ring predominate. Due to open chain structure they have cavities and can take up water and other small molecules.

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