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NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
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Analyzing
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A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is
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Correct option: B
Option B () is correct because it matches the description of a red solid that dissolves in KI solution, and decomposes upon heating to release violet iodine fumes and metallic mercury.
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