Chemistry - GOC Question with Solution | TestHub

Have more$\mathrm{\alpha }-\mathrm{H}$more conjugating structure. Show more hyperconjugation so bond lengthdouble length is longest
(A)$\mathrm{C}{\mathrm{H}}_3-\mathrm{C}\mathrm{H}=\mathrm{C}{\mathrm{H}}_2$,$\mathrm{\alpha }$$\mathrm{H}=3$
(B),$\mathrm{\alpha }$$\mathrm{H}=0$
(C)${\mathrm{CH}}_2=\mathrm{C}=\mathrm{C}{\mathrm{H}}_2$,$\mathrm{\alpha }$$\mathrm{H}=0$
(D),$\mathrm{\alpha }$$\mathrm{H}=6$