JEE Main 2002 — S Block Elements Question with Solution
From: AIEEE 2002
Question
The metallic sodium disolves in liquid ammonia to form a deep blue coloured solution. The deep blue colour is due to formation of :
Choose an option
Show full solutionCorrect option: A
Correct answer
Asolvated electron,
Step-by-step explanation
The alkali metals dissolve in liquid ammonia without evolution of hydrogen. The metal loses electrons and combine with ammonia molecule.
(in liquid ammonia) (ammoniated)
It is ammoniated electron which is responsible for color.
(in liquid ammonia) (ammoniated)
It is ammoniated electron which is responsible for color.
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This is a previous-year question from JEE Main 2002, covering the S 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.