Which of the following compounds have th...

Which of the following compounds have the plane of symmetry?

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To determine which of the given compounds have a plane of symmetry, we will analyze each compound step by step. A plane of symmetry divides a molecule into two equal halves that are mirror images of each other. ### Step 1: Understanding Plane of Symmetry - A plane of symmetry is an imaginary plane that divides a molecule into two equal halves. - If a molecule has a plane of symmetry, it means that one half is a mirror image of the other half. ### Step 2: Analyzing the First Compound - The first compound has a symmetrical structure with a double bond positioned equally between the carbon atoms. - When we draw a plane through the center of this molecule, it divides the molecule into two equal halves. - **Conclusion**: This compound has a plane of symmetry. ### Step 3: Analyzing the Second Compound - The second compound has chlorine atoms (Cl) attached symmetrically on both sides. - If we draw a plane of symmetry through the center of the molecule, it divides the molecule into two equal halves with Cl atoms mirrored on either side. - **Conclusion**: This compound has a plane of symmetry. ### Step 4: Analyzing the Third Compound - The third compound has a double bond that is not symmetrically placed. - If we attempt to draw a plane of symmetry, it does not divide the molecule into two equal halves due to the unequal positioning of the substituents. - **Conclusion**: This compound does not have a plane of symmetry. ### Step 5: Analyzing the Fourth Compound - The fourth compound has an oxygen atom positioned symmetrically. - A plane of symmetry can be drawn through the center of the molecule, dividing it into two equal halves, as the substituents on either side are at the same distance from the center. - **Conclusion**: This compound has a plane of symmetry. ### Final Conclusion - The compounds that have a plane of symmetry are the first, second, and fourth compounds. The third compound does not have a plane of symmetry. ### Summary of Results - **First Compound**: Has a plane of symmetry. - **Second Compound**: Has a plane of symmetry. - **Third Compound**: Does not have a plane of symmetry. - **Fourth Compound**: Has a plane of symmetry.