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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 analyze the statements provided in the question, we will evaluate both the assertion (A) and the reason (R) step by step. ### Step 1: Understanding Assertion (A) **Assertion (A):** In benzyne, the hybridization of the triply bonded carbon is `sp²`. - **Explanation:** Benzyne is a reactive intermediate in organic chemistry, characterized by a triple bond between two carbon atoms in a benzene ring. In this structure, one of the carbons involved in the triple bond is part of the aromatic ring, which retains `sp²` hybridization. This is because the carbon atoms in the benzene ring are `sp²` hybridized, allowing for the formation of a planar structure with 120° bond angles. ### Step 2: Understanding Reason (R) **Reason (R):** The second `pi`-bond is formed by `sp²` hybrid orbital. - **Explanation:** In the case of benzyne, the triple bond consists of one sigma bond and two pi bonds. The first pi bond is formed by the overlap of the `p` orbitals from each carbon atom. The second pi bond is indeed formed by the `sp²` hybrid orbital of one carbon overlapping with the `p` orbital of the other carbon involved in the triple bond. This is consistent with the hybridization of the carbon atoms in the benzene ring. ### Step 3: Evaluating the Truth of A and R - **Truth of A:** The assertion that the hybridization of the triply bonded carbon in benzyne is `sp²` is **true**. - **Truth of R:** The reason that the second pi bond is formed by `sp²` hybrid orbital is also **true**. ### Step 4: Relationship Between A and R - The reason (R) provides a correct explanation for the assertion (A). The hybridization of the carbon atoms in benzyne being `sp²` directly relates to how the pi bonds are formed. ### Conclusion Both the assertion (A) and the reason (R) are true, and the reason correctly explains the assertion. ### Final Answer Both statements are true, and R is the correct explanation of A. ---
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