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The compound which pepresents an unsatur...

The compound which pepresents an unsaturated hydrocarbon is:

A

`CH_(3)-C=N`

B

`CH_(3)-CH=CH_(2)`

C

`CH_(3)-CH=O`

D

All of these

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The correct Answer is:
To determine which compound represents an unsaturated hydrocarbon, we need to follow these steps: ### Step 1: Understand the Definition of Unsaturated Hydrocarbons Unsaturated hydrocarbons are hydrocarbons that contain one or more double or triple bonds between carbon atoms. This means that they are not fully saturated with hydrogen atoms. ### Step 2: Analyze Each Option We will examine each given option to identify if it contains a double or triple bond between carbon atoms. 1. **First Option**: The compound has a double bond between carbon and nitrogen. - **Analysis**: This does not qualify as an unsaturated hydrocarbon because the double bond is not between two carbon atoms. Therefore, this option is incorrect. 2. **Second Option**: The structure is CH3C≡C-CH2. - **Analysis**: Here, there is a double bond between two carbon atoms (C=C). The valency of carbon is satisfied, making this an unsaturated hydrocarbon. This option is correct. 3. **Third Option**: The compound has a double bond between oxygen and carbon. - **Analysis**: Similar to the first option, this does not qualify as an unsaturated hydrocarbon because the double bond is not between two carbon atoms. Therefore, this option is also incorrect. ### Step 3: Conclusion After analyzing all the options, the only compound that represents an unsaturated hydrocarbon is the second option: **CH3C≡C-CH2**. ### Final Answer The compound which represents an unsaturated hydrocarbon is: **CH3C≡C-CH2**. ---
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