Writing Lewis Struchures for Molceules with more than One central atom. Write the Lewis structure for methanol (molecularfarmula CH _(4) O), on important industrical alcohol tht is being used as a gasoline alternative in car engines.

Writing Lewis Struchures for Molceules with more than One central atom

1.	Writing Lewis Struchures for Molceules with more than One central atom. Write the Lewis structure for methanol (molecularfarmula CH _(4) O), on important industrical alcohol tht is being used as a gasoline alternative in car engines.
Answer» Solution :Step:1 Place the atoms relative to each other. The H atoms can have only one bond, so C and O must be adjacent to each other. In nearly all their compounds, C has four BONDS and O has TWO, so we arrange the H atoms to shown this. Step : 2 Find sum of valence electrons `[1xx C (4e ^(-)) ] + [1xxO (6e ^(-)) ] + [ 4 xx H (1e ^(-)) ] = 14 e ^(-) {:(""H),(H " "C ""O ""H),(""H):}` Step :3 Add single bonds and subtract `2e^(-)` for each bond. `H- underset(H) underset(\|) OVERSET(H) overset(\|) (C) -O-H` Five bonds ue `10 e^(-), so 14 e ^(-)- 10 e ^(-)` leaves `4e ^(-)` remaining. Step :4 Add remaining electrons in pairs. Carbond already has an octet, so the four remaining VELENCE `e ^(-)` from two lone pairs on O and give the Lewis strructure for methanol.