A red solid is insoluble in water.However , it becomes solubleif some – InterviewSolution

1.	A red solid is insoluble in water.However , it becomes solubleif some KI is added to water.Heating the red solidin a test tube results in liberation of someviolet coloured fumesand droplets of a metal appear on the cooler partsof the test tube.The red solid is
Answer» `HgI_(2)` `HgO` `Pb_(3)O_(4)` `(NH_(4))_(2)Cr_(2)O_(7)` SOLUTION :`UNDERSET("RED ppt.")(HgI_(2)) +2KI rarrunderset("Soluble")(K_(2)[HgI_(4)])`

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