(i)`overset(sp^3)CH_3overset(sp)C-=N` , (ii)`overset(sp^3)CH_3overset(sp^3)CH_3` , (iii)`overset(sp^3)CH_3Cl` , (iv)`overset(sp^3)CH_3-undersetunderset(O)(||)overset(sp^2)C-overset(sp^3)(CH_3)` , (v)`overset(sp^3)CH_3overset(sp^2)CH=overset(sp^2)CHoverset(sp)C-=N`, (vi)`H underset(O)underset(||)overset(sp^2)CNH_2` , (vii)`overset(sp^3)CH_3overset(sp^2)(CH_2)`, (viii)`overset(sp^3)(CH_3)overset(sp^3)(CH_2)^(-)` , (ix)`overset(sp^3)(CH_3)overset(sp^2)(CH_2)^+`, (x)`overset(sp^2)(CH_2)=overset(sp)C=O`