



Step 1. Understanding Vinyl Halide: Vinyl halides are compounds in which a halogen atom is directly attached to an sp2 hybridized aliphatic carbon atom, which forms part of a double bond.
Step 2. Examine Each Structure: Option (1): Contains a halogen attached to an sp2 hybridized carbon in a double-bonded system, classifying it as a vinyl halide. Option (2): Represents an allyl halide, with the halogen attached to an sp3 hybridized carbon adjacent to a double bond. Options (3) and (4): Both structures are aryl halides, with the halogen attached to an aromatic ring.
Step 3. Conclusion: Option (1) is the correct example of a vinyl halide.
A vinylic halide is an organic compound where a halogen atom is directly bonded to a carbon-carbon double bond. This is different from allylic halides, where the halogen is bonded to a carbon adjacent to the double bond.
Let's examine the options to identify the vinylic halide:
Based on the analysis, the correct answer is Option 1, where we see the halogen directly bonded to the carbon-carbon double bond, confirming it as a vinylic halide.
Match the Compounds (List - I) with the appropriate Catalyst/Reagents (List - II) for their reduction into corresponding amines. 
Consider the following amino acid: 
Which of the following options contain the correct structure of (A) and (B)?
Let one focus of the hyperbola \( H : \dfrac{x^2}{a^2} - \dfrac{y^2}{b^2} = 1 \) be at \( (\sqrt{10}, 0) \) and the corresponding directrix be \( x = \dfrac{9}{\sqrt{10}} \). If \( e \) and \( l \) respectively are the eccentricity and the length of the latus rectum of \( H \), then \( 9 \left(e^2 + l \right) \) is equal to:
