74. Complete the Lewis structure for the molecular formula (C5H7ON) below.

This molecule has _____ single bonds, _____ multiple bonds and ____ sp2 hybridized atoms.
(A) 4, 2, 2
(B) 4, 2, 4
(C) 11, 2, 2
(D) 11, 2, 4
(E) 11, 5, 4
答案:C
統計:A:0,B:0,C:1,D:0,E:0
難度:計算中