Classification of Elements and Periodicity in Properties: JEE Main 2021 Chemistry question
JEE Main 2021 · 26 Feb, Morning shift · Q1608
JEE Main 202126 Feb, Morning shiftChemistryMediumClassification of Elements and Periodicity in Properties127× since 2002
Match List - I with List - II.
List I
Electronic configuration
List II
ΔiH in kJ mol−1
(a)
1s22s2
(i)
801
(b)
1s22s22p4
(ii)
899
(c)
1s22s22p3
(iii)
1314
(d)
1s22s22p1
(iv)
1402
Choose the most appropriate answer from the options given below :
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