Question

Identify the saturated hydrocarbon from the compounds given below.

• A. $C_5{H}_{12}$
• B. $C_4{H}_8$
• C. $C_5{H}_{10}$
• D. $C_3{H}_4$

Answer 1

The correct option is A $C_5{H}_{12}$

• Alkanes are saturated hydrocarbons. The general formula for alkanes is $C_n{H}_{2n+2}$.
• Compound 1: $C_5{H}_{10}$, n=5 So, $C_n{H}_{2n+2}$= $C_5{H}_{12}$$\ne$$C_5{H}_{10}$
• Compound 2: $C_4{H}_8$, n=4 So, $C_n{H}_{2n+2}$= $C_4{H}_{10}$$\ne$$C_4{H}_8$
• Compound 3: $C_3{H}_4$, n=3 So, $C_n{H}_{2n+2}$= $C_3{H}_8$ $\ne$$C_3{H}_4$
• Compound 4: $C_5{H}_{12}$, n=5 So, it is an alkane.
• the correct option is D.