Which of the following statement about zeolite is false? Options: A . &nbsp They are used as cation exchangers B . &nbsp They have open structure which enables them to take up small molecules C . &nbsp Zeolites are aluminosilicates having three dimensional network D . &nbsp Some of the S i O 4 − 4 units are repalced by A l O 5 − 4 and A l O 9 − 6 - ions in zeolite

Which of the following statement about zeolite is false?

Discussion Forum : Surface Chemistry

Question -

Which of the following statement about zeolite is false?

Options:

A . They are used as cation exchangers

B . They have open structure which enables them to take up small molecules

C . Zeolites are aluminosilicates having three dimensional network

D . Some of the

S i O_{4}^{4 -}

units are repalced by

A l O_{4}^{5 -}

and

A l O_{6}^{9 -}

^- ions in zeolite

Answer: Option D
:
D

$A l O_{4}^{5 -}$ ion has nearly the same size as the $S i O_{4}^{4 -}$ ion and can replace the latter from silicates provided electrical neutrality is maintained.

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Discussion Forum : Surface Chemistry

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