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In the following questions, a statement ...

In the following questions, a statement of assertion (A) is following by a statement of reason (R )
A: In benzyne the hybridisation of triply bonded carbon is `SP^(2)` .
R: The second `pi`-bond is formed by `sp^(2)` hybrid orbital .

A

If both Assertion & Reason are the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark(2).

C

If Assertion is true statement but Reason is false , then mark (3)

D

If both Assertion and Reason are false statements, then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion (A) and the reason (R) provided in the question regarding benzyne. ### Step-by-Step Solution: 1. **Understanding the Assertion (A)**: - The assertion states that in benzyne, the hybridization of the triply bonded carbon is `sp²`. - **Analysis**: In benzyne, which is an intermediate in certain reactions of benzene, the carbon atoms involved in the triple bond are indeed `sp²` hybridized. This is because benzyne can be thought of as a derivative of benzene where one of the double bonds is converted into a triple bond. **Hint**: Recall that in benzene, all carbon atoms are `sp²` hybridized, which allows for the formation of a planar structure with delocalized pi electrons. 2. **Understanding the Reason (R)**: - The reason states that the second pi bond is formed by `sp²` hybrid orbitals. - **Analysis**: In the case of benzyne, the triple bond consists of one sigma bond and two pi bonds. The first pi bond is formed from the overlap of unhybridized p orbitals, while the second pi bond is indeed formed from the overlap of the `sp²` hybridized orbitals of the two carbons involved in the triple bond. **Hint**: Remember that in hybridization, the type of orbitals involved in bond formation can affect the geometry and bonding characteristics of the molecule. 3. **Conclusion**: - Both the assertion (A) and the reason (R) are true. - Furthermore, the reason (R) correctly explains the assertion (A) because it describes how the second pi bond is formed in benzyne. ### Final Answer: - The correct answer is that both the assertion and the reason are true, and the reason is the correct explanation for the assertion. ### Summary: - Assertion (A) is true: In benzyne, the hybridization of the triply bonded carbon is `sp²`. - Reason (R) is true: The second pi bond is formed by `sp²` hybrid orbitals. - Therefore, the assertion and reason are both true, and R is the correct explanation for A.
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