Question

Draw Newman projections for the sequence of structures depictingbond angle rotation about the central C-C bond in n-butane (do thisin 60 degree intervals, dihedral angle values from 0-360 degrees)a) Label each conformation as eclipsed or staggered and indicatewhich staggered conformation is either anti or gauche B) which ismore stable, anti or gauche? C) What evidence is there for stericrepulsion between methyl groups in the gauche conformation?