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a
Sulphur with '+3' state is in I- excited state
b
Sulphur with '+5' state is in II- excited state
c
Only on one sulphur atom a lone pair is present
d
There are 8 sigma, 2 pi bonds and 10 lone pairs
answer is D.
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Detailed Solution
I - excited state configuration of 'Sulphur'Represents "+3" (or) "+4" state, tetravalency;One dπ-pπ bond and one lone pair on sulphur atom; II - excited state configuration of 'Sulphur'Represents '+5' (or) '+6' state,hexavalencyTwo dπ-pπ bonds, no lonepair on Sulphur atom+3 -- In I-excited state+5-- In II-excited stateThere are 8σ,3π bonds and 11 lone pairs