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                                    Silica reacts with a hydride of superhalogen to form 'X'. On hydrolysis of 'X', another compound 'Y' is formed. 'Y' on heating at 1000∘C losses water to form 'Z'.'Z' can also be prepared by the reaction | 
                            
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Answer»  Silica reacts with a hydride of superhalogen to form 'X'. On hydrolysis of 'X', another compound 'Y' is formed. 'Y' on heating at 1000∘C losses water to form 'Z'.  | 
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