The video tutorial explains isomerism in butane, highlighting its molecular formula C4H10. It describes two structural arrangements: normal butane with a linear carbon chain and isobutane formed by rearranging a methyl group. The tutorial provides a clear understanding of how these structures differ and their common nomenclature.

What is the molecular formula of butane?

• C6H14

• C4H10

• C5H12

• C3H8

How are the carbon atoms arranged in normal butane?

• In a branched chain

• In a cyclic structure

• In a zigzag pattern

• In a linear chain

What happens to a methyl group in the formation of isobutane?

• It detaches and joins the second carbon atom

• It detaches and joins the first carbon atom

• It remains in the linear chain

• It forms a new compound

What is the common name for 2-methylpropane?

• Normal butane

• Isobutane

• Propane

• Methane

Which of the following is a type of isomerism shown by butane?

• Optical isomerism

• Conformational isomerism

• Geometric isomerism

• Structural isomerism