Which of the following statements are true for zeolites?
I. They are formed by the replacement of some of the silicon atoms of the 
lattice by aluminium
II. They are used as catalyst for softening of 'hard' water.
III. They can absorb 
, and EtOH
IV. They can separate straight chain hydrocarbons from a mixture containing both straight, chain, and branched chain hydrocarbons of these statements
Text Solution
Verified by ExpertsB
Zeolites are sodium aluminium silicates having pores (voids) which absorb gases like
, and alcohol (vapours). They are also used to separate hydrocarbons due to their closed packing. Zeolites are used as ion exchangers in softening of hard water.
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