Draw the following incorrectly named compounds and name them correctly. a. 2-ethyl-3-methyl-5-isopropylhexane b. 2-ethyl-4-tert-butylpentane c. 3-methyl-4-isopropylpentane d. 2-ethyl-3-butyne

First, let's draw the structure of the compound based on the incorrect name 2-ethyl-3-methyl-5-isopropylhexane. 1. Draw a hexane structure, which has 6 carbons in a straight chain. 2. Add an ethyl group (CH3CH2) to the 2nd carbon, a methyl group (CH3) to the 3rd carbon, and an isopropyl group (CH3)2CH to the 5th carbon. Now that we have the structure, let's correct the name by identifying the longest carbon chain and numbering it according to the substituents in alphabetical order. The longest chain consists of 7 carbons and begins from the carbon attached to the 2nd ethyl group, with numbering going through the isopropyl group and finally reaching the carbon attached to the methyl group. The correct name for the compound is 4-ethyl-6,6-dimethyl-2-heptane.

First, let's draw the structure of the compound based on the incorrect name 2-ethyl-4-tert-butylpentane. 1. Draw a pentane structure, which has 5 carbons in a straight chain. 2. Add an ethyl group (CH3CH2) to the 2nd carbon and a tert-butyl group (CH3)3C to the 4th carbon. Now that we have the structure, let's correct the name by identifying the longest carbon chain and numbering it according to the substituents in alphabetical order. We can consider the straight chain to be the longest carbon chain. The correct name for the compound is 2-ethyl-4-tert-butylpentane. In this case, the name is already correct.

First, let's draw the structure of the compound based on the incorrect name 3-methyl-4-isopropylpentane. 1. Draw a pentane structure, which has 5 carbons in a straight chain. 2. Add a methyl group (CH3) to the 3rd carbon and an isopropyl group (CH3)2CH to the 4th carbon. Now that we have the structure, let's correct the name by identifying the longest carbon chain and numbering it according to the substituents in alphabetical order. The longest chain consists of 6 carbons and begins from the carbon attached to the 4th isopropyl group and ends at the end of the 5th carbon. The correct name for the compound is 2-methyl-5-isopropylhexane.

First, let's draw the structure of the compound based on the incorrect name 2-ethyl-3-butyne. 1. Draw a 3-butyne structure, which has two carbons with a triple bond and 2 carbons with a single bond following them (C≡C-CH2-CH3). 2. Add an ethyl group (CH3CH2) to the 2nd carbon. Now that we have the structure, let's correct the name by identifying the longest carbon chain featuring the carbon-carbon triple bond and numbering it according to the substituents in alphabetical order. The longest chain consists of 4 carbons. The correct name for the compound is 5-ethylnon-3-yne.