11th Class Chemistry Chemical Bonding and Molecular Structure

  • question_answer 52)   Number of \[\pi \]-bonds and \[\sigma \]-bonds in the following structure is : (a) 6, 19                                (b) 4, 20                                (c) 5, 19                                (d) 5, 20

    Answer:

      (c) Every single bond has one sigma bond and every double bond has one sigma and one \[\pi \]-bond. The given structure has five double bonds and fourteen single bonds. \[\therefore \]  \[\pi \]-bonds = 5 \[\sigma \]-bonds = 14 + 5 = 19                


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