These questions consist of two statements each printed as assertion an...
**Assertion and Reason**
**Assertion**: In comparison to ethyl chloride, it is difficult to carry out nucleophilic substitution on vinyl chloride.
**Reason**: Vinyl group is electron donating.
**Explanation**
Nucleophilic substitution reactions involve the substitution of a nucleophile (an electron-rich species) for a leaving group in a molecule. The ease of carrying out nucleophilic substitution reactions depends on the nature of the substrate and the leaving group.
In the given assertion, it is stated that it is difficult to carry out nucleophilic substitution on vinyl chloride compared to ethyl chloride. Let's analyze the reason provided to understand this statement.
**Reason Analysis**
The reason given is that the vinyl group is electron donating. This means that the vinyl group donates electron density towards the carbon atom it is attached to. Electron-donating groups increase the electron density on the carbon atom, making it less electrophilic and less susceptible to nucleophilic attack.
**Assertion and Reason Evaluation**
From the above analysis, we can evaluate the given assertion and reason as follows:
- The assertion is true: It is generally more difficult to carry out nucleophilic substitution on vinyl chloride compared to ethyl chloride.
- The reason is false: While vinyl group is electron donating, it does not provide an accurate explanation for the difficulty in nucleophilic substitution on vinyl chloride.
**Explanation of the Correct Answer**
The correct answer is option 'C': Assertion is true but Reason is false.
The assertion is true because vinyl chloride, which has a vinyl group (-CH=CH2), is less reactive towards nucleophilic substitution reactions compared to ethyl chloride. This can be attributed to the resonance stabilization and delocalization of the electron density in the vinyl group.
However, the reason provided is false because the assertion is not solely based on the electron-donating nature of the vinyl group. Other factors such as steric hindrance and stability of the leaving group also contribute to the difficulty in nucleophilic substitution reactions on vinyl chloride.
Overall, while the assertion is true, the reason provided is not the correct explanation for the given assertion.
These questions consist of two statements each printed as assertion an...
Option C is correct
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.