Worksheet for identifying functional groups in organic molecules with examples and handwritten answers.

Problem Analysis:

The task involves identifying functional groups in organic molecules and drawing an organic compound based on its name. Let's break it down step by step.

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#### Part 1: Identify the Functional Groups

1. Molecule (a):
- The molecule has a `C=O` group (carbonyl) bonded to an `OH` group.
- This is the carboxylic acid functional group.
- Correct Answer: Carboxylic acid

2. Molecule (b):
- The molecule has a `C=O` group (carbonyl) bonded to an `O-R` group (where `R` is an alkyl group).
- This is the ester functional group.
- Correct Answer: Ester

3. Molecule (c):
- The molecule has a `C=O` group (carbonyl) bonded to an `NH2` group.
- This is the amide functional group.
- Correct Answer: Amide

4. Molecule (d):
- The molecule has an `OH` group bonded to a carbon atom.
- This is the alcohol functional group.
- Correct Answer: Alcohol

5. Molecule (e):
- The molecule has a halogen (`Br`) atom directly bonded to a carbon atom.
- This is the alkyl halide functional group.
- Correct Answer: Alkyl halide

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#### Part 2: Draw the Following Organic Compounds

1. Compound (a): Propanol
- Propanol is an alcohol with a three-carbon chain (`propane`) and an `-OH` group.
- The structure of propanol can be written as:
```
CH3-CH2-CH2-OH
```
- Alternatively, it can be drawn using a condensed formula or a line-angle structure:
```
CH3CH2CH2OH
```
- Correct Answer: The student correctly identified it as an alcohol and drew the structure as `OH`.

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Final Answers:

1. Functional Group Identification:
- (a) Carboxylic acid
- (b) Ester
- (c) Amide
- (d) Alcohol
- (e) Alkyl halide

2. Drawing Propanol:
- Structure: `CH3CH2CH2OH`

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Boxed Final Answer:

\[
\boxed{
\text{1. (a) Carboxylic acid, (b) Ester, (c) Amide, (d) Alcohol, (e) Alkyl halide}
}
\]
\[
\boxed{
\text{2. Propanol: } \text{CH3CH2CH2OH}
}
\]