38 JEE Main 2023 s Block Elements previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2023 previous-year questions from the s Block Elements chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the s Block Elements chapter hub.
Given below are two statements : Statement I : Lithium and Magnesium do not form superoxide Statement II : The ionic ra…
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A:- The…
Lithium aluminium hydride can be prepared from the reaction of
Match List I with List II List I List II A. Cobalt catalyst I. H 2 + Cl 2 production B. Syngas II. Water gas production…
The number of alkali metal(s), from Li ,   K ,   Cs ,   Rb having ionization enthalpy greater than 400 &…
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R : Assertion (A) :…
Lime reacts exothermally with water to give ‘ A ’ which has low solubility in water. Aqueous solution of &l…
In the given reaction cycle X ,   Y and Z respectively are
The number of s-electrons present in an ion with 55 protons in its unipositive state is
Reaction of BeO with ammonia and hydrogen fluoride gives ' A ' which on thermal decomposition gives BeF 2 and NH 4 F .…
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