Which of the following statements `is//are` correct?

Options

A. The `IUPAC` name of amyl alcohol is pentanol.
B. The `IUPAC` name of isoamyl alcohol is 3-methyl butanol.
C. Wood spirit is methanol.
D. Methyl alcohol is also called carbinol

Explanation

To determine which of the statements regarding organic compounds are correct, we will analyze each statement step by step.

### Step 1: Analyze the first statement
**Statement 1:** The IUPAC name of amyl alcohol is correct.

- **Structure of Amyl Alcohol:** The structure of amyl alcohol is represented as CH3CH2CH2CH2CH2OH. This indicates that there are five carbon atoms (pentane) and one hydroxyl (OH) group.
- **IUPAC Naming:** The IUPAC name for this compound is pentanol, specifically 1-pentanol, since the hydroxyl group is on the first carbon.

**Conclusion:** This statement is correct.

### Step 2: Analyze the second statement
**Statement 2:** Isoamyl alcohol is 3-methylbutanol.

- **Structure of Isoamyl Alcohol:** Isoamyl alcohol can be represented as CH3-CH(CH3)-CH2-CH2-OH. This indicates that there is a branching at the second carbon (due to the methyl group).
- **IUPAC Naming:** The longest carbon chain has four carbons (butane), and the methyl group is on the third carbon. Therefore, the correct IUPAC name is indeed 3-methylbutanol.

**Conclusion:** This statement is correct.

### Step 3: Analyze the third statement
**Statement 3:** Wood spirit is methanol.

- **Definition of Wood Spirit:** Wood spirit is a common name for methanol, which is produced through the destructive distillation of wood.
- **Chemical Structure:** Methanol is represented as CH3OH.

**Conclusion:** This statement is correct.

### Step 4: Analyze the fourth statement
**Statement 4:** Methyl alcohol is also called Carbinol.

- **Definition of Methyl Alcohol:** Methyl alcohol is another name for methanol (CH3OH).
- **Carbinol:** The term "carbinol" is indeed used to refer to methanol, particularly in some contexts.

**Conclusion:** This statement is correct.

### Final Conclusion:
All four statements are correct.

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