Question

their carbon skeletons. They are constitutional isomers. isobutane butane One final written first followed by hydrogen, and lecules, carbon is alwa n alphabetical order note pertaining to molecular formulas is that, for organic mo all other elements are written last i Problems for Section 1.10A raw Kekulé structures for the constitutional isomers with formula C.Hs (there should be four structures). Calculate the IHD for this formula. 1.27 D 1.28 Draw Kekulé structures for the constitutional isomers with formula C4H.C be four structures). Calculate the IHD for this formula. 1.29 Draw Kekulé structures for the constitutional isomers with formula CHo (there should be two structures). Calculate the IHD for this formula. 1.30 Draw Kekulé structures for the constitutional isomers with formula CsH12 (there should be three structures). Calculate the IHD for this formula.
Please do either 1.28 or 1.30

Answer 1

IHD=(2X+2-Y)/2

WHERE X=5

Y=12

IHD=(2*5+2-12)/12=0

HENCE IHD IS 0