P-Block Elements Ques 59
Question: Which one of the following statements about the zeolites is false
[CBSE PMT 2004]
Options:
A) Zeolites are aluminosilicates having three dimensional network
B) 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
Show Answer
Answer:
Correct Answer: B
Solution:
Zeolite have $ SiO_4 $ and $ AlO_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.
