Which general formula represents the homologous series of hydrocarbons that includes the compound 2-heptyne?

(1) Cn H2n-6
(2) Cn H2n-2
(3) Cn H2n
(4) Cn H2n+2

the general formular is cnH2n-2

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

the answer is symmetrical : )