Question

How many isomers are possible in ${\mathrm{C}}_4{\mathrm{H}}_8$

• A. $5$
• B. $4$
• C. $3$
• D. $2$

Answer 1

The correct option is A

$5$

The correct option is option A

The explanation for the correct option:

1. Molecules with the same chemical formula but different molecular geometries are referred to as isomers.
2. There are five possible isomers with the given formula,${\mathrm{C}}_4{\mathrm{H}}_8$. These include cyclobutane, but$-1-$ene, but$-2-$ene, $2-$methylpropane, and methyl cyclopropane.
3. Cyclobutane is a cycloalkane with a formula${\left({\mathrm{CH}}_2\right)}_4$. It is a colorless gas that is available as a liquefied gas.
4. but$-1-$ene is an organic compound with four carbon and a double bond is present at the first carbon.
5. but$-2-$ene is an organic compound with four carbon and a double bond is present at the second carbon.
6. In $2-$methyl propene there are three carbon atoms in the parent chain. The second carbon atom has a side chain with a methyl group and a double bond.
7. Methyl cyclopropane is an organic compound. It is a colorless gas that is a mono methyl derivative of cyclopropane.

Final answer: Therefore, there are five isomers possible for ${\mathrm{C}}_4{\mathrm{H}}_8$