JEE Main 2020 — s Block Elements Question with Solution
JEE Main 2020 (09 Jan Shift 2)
Question
Among the statements the correct ones are:
Lithium has the highest hydration enthalpy among the alkali metals.
Lithium chloride is insoluble in pyridine.
Lithium cannot form ethynide upon its reaction with ethyne.
Both lithium and magnesium react slowly with .
Lithium has the highest hydration enthalpy among the alkali metals.
Lithium chloride is insoluble in pyridine.
Lithium cannot form ethynide upon its reaction with ethyne.
Both lithium and magnesium react slowly with .
Choose an option
Show full solutionCorrect option: B
Correct answer
B and only
Step-by-step explanation
Lithium has highest hydration enthalpy among
alkali metals due to its small size.
LiCl is soluble in pyridine because LiCl have
more covalent character.
Li does not form ethynide with ethyne.
Both Li and Mg reacts slowly with
alkali metals due to its small size.
LiCl is soluble in pyridine because LiCl have
more covalent character.
Li does not form ethynide with ethyne.
Both Li and Mg reacts slowly with
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This is a previous-year question from JEE Main 2020, 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.