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Question

The basic structural unit of zeolite is:

A
SiO44
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B
SiO2
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C
(R2SiO)n
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D
(SiO3)2nn
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Solution

The correct option is B SiO2
If Al atoms replace few Si atoms in 3-D network of SiO2, overall structure known as aluminosilicate, acquires a negative charge. Cations such as Na+,K+orCa2+ balance the negative charge.
Thus, basic structural unit of zeolite is SiO2.

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