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Classify the following alcohols as prima...

Classify the following alcohols as primary, secondary, or tertiary :

A

`(CH_(3))_(3)C CH_(2)OH`

B

`CH_(3)CH(OH)CH(CH_(3))_(2)`

C

`(CH_(3))_(2)C(OH)CH_(2)CH_(3)`

D

Text Solution

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The correct Answer is:
To classify the given alcohols as primary, secondary, or tertiary, we need to analyze the structure of each alcohol based on the carbon atom that is bonded to the hydroxyl group (-OH). Here’s a step-by-step solution: ### Step 1: Understand the Definitions - **Primary Alcohol**: The carbon atom attached to the -OH group is bonded to only one other carbon atom. - **Secondary Alcohol**: The carbon atom attached to the -OH group is bonded to two other carbon atoms. - **Tertiary Alcohol**: The carbon atom attached to the -OH group is bonded to three other carbon atoms. ### Step 2: Analyze the First Alcohol - **Structure**: CH3-CH2-OH - The carbon with the -OH group (C) is bonded to one other carbon (CH2). - **Classification**: This is a **Primary Alcohol**. ### Step 3: Analyze the Second Alcohol - **Structure**: CH3-CHOH-CH3 - The carbon with the -OH group (C) is bonded to two other carbons (CH3 and CH3). - **Classification**: This is a **Secondary Alcohol**. ### Step 4: Analyze the Third Alcohol - **Structure**: (CH3)3C-OH - The carbon with the -OH group (C) is bonded to three other carbons (three CH3 groups). - **Classification**: This is a **Tertiary Alcohol**. ### Step 5: Analyze the Fourth Alcohol - **Structure**: CH3-CH(OH)-CH3 - The carbon with the -OH group (C) is bonded to two other carbons (CH3 and CH3). - **Classification**: This is also a **Secondary Alcohol**. ### Summary of Classifications 1. First Alcohol: **Primary** 2. Second Alcohol: **Secondary** 3. Third Alcohol: **Tertiary** 4. Fourth Alcohol: **Secondary** ### Final Answer - Primary Alcohol: 1 - Secondary Alcohol: 2 and 4 - Tertiary Alcohol: 3
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