1.

Which one of the following statements about the zeolites is false [CBSE PMT 2004]

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
Answer» C. They are used as cation exchangers


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