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{:("COLUMN-I","COLUMN-II"),("A)" SiO(2),...

`{:("COLUMN-I","COLUMN-II"),("A)" SiO_(2),"p) React with HF"),("B)"CN^(-),"q) Pseudo halide"),("C)" I^(-),"r) Gives compound with " Cu^(2+) "via redox react"),("D)" SnO_(2), "s) Dissolves in alkali "):}`

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The correct Answer is:
A-p,s;B-q;C-r;D-s
`{:("A)" SiO_(2),-, "Reacts with" HF, SiO_(2) + 4HF rarr SiF_(4) + 2H_(2)O),(,,"Dissolves in Alkali as it is acidic" ),(,,SiO_(2) + 2NaOH rarr Na_(2) SiO_(3) + H_(2)O),( "B)" CN^(-) ,-,"Cyanogen is a pseudo halide"),("C)"I^(-),-,"Gives compound with "Cu^(+2) "via redox reaction"),("D)" SnO_(2),-,"Dissolves in alkali"),(,,SnO_(2)+2NaOH rarr Na_(2)SiO_(3)+H_(2)O):}`
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