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Which of the following statements are correct about zeolite? 1 . Zeolites are aluminosilicates having three dimensional network 2 . Shape selectivity of zeolites depends upon porous structures of the catalyst 3 . Zeolites are synthetic microporous aluminosilicates which do not exist naturally 4 . Zeolites are open structures of silica in which trivalent aluminium substitute by a fraction of silicon atoms

Options

  1. A1 , 2
  2. B2 , 4
  3. C1 , 2 , 3
  4. D1 , 2 , 4

Correct answer

D. 1 , 2 , 4

Step-by-step solution

Zeolites are naturally occurring or synthetic microporous aluminosilicates which are used to remove permanent hardness from hard water. Shape selectivity of zeolites depends upon porous structures of the catalyst.

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