MCQ
Number of chain isomers from $C_5H_{12}$
- A$4$
- B$3$
- C$2$
- D$1$
✓
Answer
$\mathrm{C}_{5} \mathrm{H}_{12}: \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$
$\begin{array}{cc} & \mathrm{CH}_{3} \\ \mathrm{CH}_{3}-\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{3} & \mathrm{CH}_{3}-\mathrm{C}-\mathrm{CH}_{3} \\ \mathrm{CH}_{3} & \mathrm{CH}_{3}\end{array}$
2- Methylbutane(iso-pentane), 2,2-Dimethylpropane (neo-pentane)
Thus, Isomers of $\mathrm{C}_{5} \mathrm{H}_{12} \Rightarrow$
(a) Pentane
(b) Iso-pentane or 2 -methylbutane
(c) neo-pentane or 2,2 -dimethylpropane
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