Which of the following statements about the zeolites is false?A. They are used as cation exchangersB. They have open structures which enables them to take up small moleculesC. They are aluminosilicates having three dimensional networkD. In zeolites some of rthe `SiO_(4)^(4-)` anions are replaced by `AlO_(4)^(5-)` and `AlO_(6)^(9-)` ions.

Which of the following statements about the zeolites is false?A. They

1.	Which of the following statements about the zeolites is false?A. They are used as cation exchangersB. They have open structures which enables them to take up small moleculesC. They are aluminosilicates having three dimensional networkD. In zeolites some of rthe `SiO_(4)^(4-)` anions are replaced by `AlO_(4)^(5-)` and `AlO_(6)^(9-)` ions.
Answer» Correct Answer - D Only tetrahedral `AlO_(4)^(5-)` ions which have nearly the same size as the tetrahedral `SiO_(4)^(4-)` anions can replace the latter to from zeolites, provided electerical neutrality is maintained.