Understanding 3-Ethyl-2-Methylhexane

The video tutorial explains how to write the structural formula for 3-ethyl-2-methylhexane, starting with the identification of hexane as an alkane with six carbon atoms. It details the addition of a methyl group on the second carbon and an ethyl group on the third carbon, emphasizing the alphabetical order in naming. The tutorial also covers the molecular formula C9H20 and discusses the flexibility of single bonds in the structure.

What is the molecular formula of 3-ethyl-2-methylhexane?

• C10H22

• C9H20

• C8H18

• C7H16

What does the suffix 'ane' indicate in the name hexane?

• Presence of single bonds

• Presence of triple bonds

• Presence of double bonds

• Presence of aromatic rings

How many carbon atoms are present in the longest chain of hexane?

• Seven

• Six

• Five

• Four

What is a methyl group composed of?

• One carbon and three hydrogens

• Two carbons and three hydrogens

• One carbon and two hydrogens

• Two carbons and two hydrogens

Where is the methyl group located in 3-ethyl-2-methylhexane?

• On the first carbon

• On the second carbon

• On the fourth carbon

• On the third carbon

What is an ethyl group composed of?

• One carbon and three hydrogens

• One carbon and two hydrogens

• Two carbons and four hydrogens

• Two carbons and six hydrogens

Where is the ethyl group located in 3-ethyl-2-methylhexane?

• On the second carbon

• On the fourth carbon

• On the third carbon

• On the first carbon

Why does the order of listing ethyl and methyl matter in the name?

• Ethyl is larger than methyl

• Methyl is larger than ethyl

• Alphabetical order

• Numerical order

What allows the bonds in 3-ethyl-2-methylhexane to rotate?

• Presence of double bonds

• Presence of single bonds

• Presence of triple bonds

• Presence of aromatic rings

What is the structural formula of 3-ethyl-2-methylhexane?

• C-C-C-C-C-C with two methyl groups

• C-C-C-C-C-C

• C-C-C-C-C-C with a methyl and ethyl group

• C-C-C-C-C-C with two ethyl groups