Understanding 2-Methylhexane Structure

The video tutorial explains how to write the structure for 2-methylhexane (C7H16). It begins by constructing a six-carbon chain, as indicated by the 'hex' in hexane, and then adds a methyl group to the second carbon, forming 2-methylhexane. The tutorial also demonstrates the structure with hydrogen atoms and presents a 3D ball-and-stick model. It highlights that the methyl group can be placed on either side of the second carbon without changing the compound's identity. The video concludes by showing the expected structure without hydrogen atoms and reiterating the placement of the methyl group.

What does the 'hex' in hexane indicate about the carbon chain?

• It has ten carbons.

• It has six carbons.

• It has eight carbons.

• It has four carbons.

What type of bonds are present in an alkane?

• Single bonds

• Double bonds

• Aromatic bonds

• Triple bonds

How many carbons are in the main chain of 2-methylhexane?

• Four

• Five

• Six

• Seven

Where is the methyl group located in 2-methylhexane?

• On the fourth carbon

• On the second carbon

• On the first carbon

• On the third carbon

Why are hydrogen atoms usually not written in the structure of hydrocarbons?

• They are too complex to draw.

• They are not part of the molecule.

• They are implied in the structure.

• They are not important.

How many things is each carbon atom bonded to in 2-methylhexane?

• Two

• Five

• Three

• Four

What model is used to visualize 2-methylhexane in three dimensions?

• Space-filling model

• Ball and stick model

• Wireframe model

• Ribbon model

What happens to the structure of 2-methylhexane if it is turned upside down?

• It gains an extra carbon.

• It becomes a different compound.

• It remains the same compound.

• It loses its methyl group.

What is the significance of not writing hydrogen atoms in the final structure of 2-methylhexane?

• It simplifies the drawing.

• It changes the compound.

• It adds more detail.

• It makes it incorrect.

What is the role of the methyl group in 2-methylhexane?

• It changes the compound's name.

• It alters the compound's properties.

• It is not part of the compound.

• It is a placeholder.