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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Shreyasi majumdar 1
The octet of all atoms are complete in structures c and d . The molecule in which all the atoms have complete octet is more stable than atom which have incomplete octet. Larger the number of resonating structures, larger will be the stability, thus structures c and d are stable. Among a and b, a is destabilised due to +M from O on -ve charge on Carbon So, correct option is a
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