Question

1. Write the name and draw the structure of a saturated hydrocarbon with four carbon atoms.
2. Write the number of single covalent bonds present in this compound.

Answer 1

(i) The saturated hydrocarbon with four carbon atoms is butane (C₄H₁₀).

Structure:

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\end{array}\]

(ii) The number of single covalent bonds is 13.