Kemija - 2014./15. ljeto - 15.

A. ${\mathrm{C}}_3{\mathrm{H}}_3\backslash mathrm\{C\}\_\{3\}\; \backslash mathrm\{H\}\_\{3\}$

B. ${\mathrm{C}}_3{\mathrm{H}}_4\backslash mathrm\{C\}\_\{3\}\; \backslash mathrm\{H\}\_\{4\}$

C. ${\mathrm{C}}_4{\mathrm{H}}_3\backslash mathrm\{C\}\_\{4\}\; \backslash mathrm\{H\}\_\{3\}$

D. ${\mathrm{C}}_4{\mathrm{H}}_4\backslash mathrm\{C\}\_\{4\}\; \backslash mathrm\{H\}\_\{4\}$