IUPAC Nomenclature of Alkanes: Part 2

The video tutorial explains how to identify the longest carbon chain in a molecule and determine the correct numbering direction to prioritize substituents. It covers the importance of listing substituents in alphabetical order and discusses common names and prefixes used in chemistry, highlighting exceptions in alphabeticity rules.

What is the first step in identifying the structure of a molecule?

• Determine the number of hydrogen atoms

• Find the total molecular weight

• Locate the functional groups

• Identify the longest carbon chain

When numbering a carbon chain, which direction should you choose?

• The direction that starts from the left

• The direction that gives the lowest number to the first substituent

• The direction that gives the highest number to the first substituent

• The direction that starts from the right

How should substituents be listed when naming a molecule?

• In order of increasing size

• In order of appearance on the chain

• In alphabetical order

• In order of decreasing size

What is the correct way to separate numbers and words in chemical names?

• With a semicolon

• With a space

• With a hyphen

• With a period

How are multiple identical substituents indicated in a chemical name?

• By listing them separately

• By using prefixes like di-, tri-, or tetra-

• By using a different name for each

• By ignoring them

Which prefix is considered in alphabetical ordering?

• tert-

• iso-

• sec-

• di-

What does the prefix 'tert-' indicate about a carbon atom?

• It is connected to three other carbons

• It is connected to four other carbons

• It is connected to one other carbon

• It is connected to two other carbons