JEE Main 2003 — D And F Block Elements Question with Solution
From: AIEEE 2003
Question
A red solid is insolvable in water. However it becomes soluble if some is added to water. Heating the red solid in a test tube results in liberation of some violet colored fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is :
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
When is added to mercuric iodide it dissolve in it and form complex.
On heating decomposes as
On heating decomposes as
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This is a previous-year question from JEE Main 2003, covering the D And F Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.