Which of the following species has the ground state electron configuration of
1s22s22p63s23p6?
HSO−4
Sulfide ion, S2−
KOH
HNO3
C2O2−4
A
Sulfide ion, S2−
B
HNO3
C
KOH
D
HSO−4
E
C2O2−4
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Solution
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The correct option is A Sulfide ion, S2− The sulphur atom has ground state electronic configuration of 1s22s22p63s23p4.
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