Q. Which one of the following statements about the zeolite is false?
A) They are used as cation exchangers
B) Some of the ${SiO}_{4}^{4 -}\ units\ are\ replaced\ by\ {AlO}_{4}^{5 -}$ and ${AlO}_{6}^{9 -}$ ions in zeolite
C) They have open structure which enables them to take up small molecules
D) Zeolites are aluminosilicates having three dimensional structure
Explanation
(b)
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
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.