CSEC Chemistry · January 2018 · Paper 1 · Question Q47

Which of the following about ethane is correct?

1. (A)Structural formula \begin{matrix} \text{H} & & \text{H} \\ & \text{C}=\text{C} & \\ \text{H} & & \text{H} \end{matrix}
2. (B)Molecular formula – \text{C}_2\text{H}_4
3. (C)Empirical formula – \text{CH}_2
4. (D)General formula – \text{C}_n\text{H}_{2n+2}