Hydrogen peroxide can be tested with

1.	Hydrogen peroxide can be tested with
Answer» A filter paper with a stain of BLACK Pos An acidified solution of `TiO_(2)` KI+ starch solution Acidified `K_(2)Cr_(2)O_(7)` solution with little ether Solution : Hydrogen PEROXIDE can be tested with (1) `H_(2)O_(2)`reacts with KI to form `I_(2)` which on reaction with starch producess BLUE colour soution. `H_(2)_(2)2KI to 2KOH +I_(2) overset("startch") to` blue color (2) `H_(2)O_(2)` on reaction with acidified `K_(2)Cr_(2)O_(7)`forms blue peroxide of chromium which is soluble in ether and PRODUCES blue colored layer. (3) `H_(2)O_(2)` gives orange colour (pertitanic acid) on reaction with acidified titanium dioxide `TiO_(2)+2H_(2)SO_(4) to Ti(SO_(4))_(2)+2H_(2)O- overset(H_(2)O_(2)) to H_(2) TiO_(4)+2H_(2)S_(4)` Per titanic acid (4) `H_(2)O_(2)` tunr balck PbS into white substance `PbS_(4)`

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