Based on VSEPR theory, what is the expected value of the indicated bond angle in each of the following compounds?
(a) C—C—N in CH_3—C≡N (b) C—O—C in CH_3—O—CH_3
(c) C—N—C in CH_3—NH—CH_3(d) C—C—C in CH_3—C≡C—H
(a) 180° (b) 109° (c) 109° (d) 180° (e) 180°