Write a test to detect the presence of double bond in a molecule.

This is a short answer type question as classified in NCERT Exemplar

The bromine water test and Bayer's test are two methods for detecting the presence of an unsaturated double bond in an organic molecule.

Bromine is added to the carbon atoms across the double bond in the bromine water test when the molecule is introduced to bromine water. Bromine water changes colour from orange to brown to colourless at the end of the process.

The alkaline KMnO₄ is employed in Bayer's test to detect unsaturated carbon with a double bond. The chemical produces [O], which hydrolyzes the carbons across the double bond, resulting in a purple-to-colorless s

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This is a short answer type question as classified in NCERT Exemplar

The bromine water test and Bayer's test are two methods for detecting the presence of an unsaturated double bond in an organic molecule.

Bromine is added to the carbon atoms across the double bond in the bromine water test when the molecule is introduced to bromine water. Bromine water changes colour from orange to brown to colourless at the end of the process.

The alkaline KMnO₄ is employed in Bayer's test to detect unsaturated carbon with a double bond. The chemical produces [O], which hydrolyzes the carbons across the double bond, resulting in a purple-to-colorless solution containing the two molecules.

2KMnO₄+H₂O→2KOH+2MnO₂+3 [O]

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<p><span data-teams="true">This is a short answer type question as classified in NCERT Exemplar</span></p><p>The bromine water test and Bayer's test are two methods for detecting the presence of an unsaturated double bond in an organic molecule.</p><p>Bromine is added to the carbon atoms across the double bond in the bromine water test when the molecule is introduced to bromine water. Bromine water changes colour from orange to brown to colourless at the end of the process.</p><div><div><picture><source srcset="https://images.shiksha.com/mediadata/images/articles/1747110035php53O6b8_480x360.jpeg" media=" (max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/articles/1747110035php53O6b8.jpeg" alt="" width="311" height="108"></picture></div></div><p>The alkaline <strong>KMnO₄</strong> is employed in Bayer's test to detect unsaturated carbon with a double bond. The chemical produces <strong> [O]</strong>, which hydrolyzes the carbons across the double bond, resulting in a purple-to-colorless solution containing the two molecules.</p><p><strong>2KMnO₄+H₂O→2KOH+2MnO₂+3 [O]</strong></p><div><div><picture><source srcset="https://images.shiksha.com/mediadata/images/articles/1747110056phpbLP0kJ_480x360.jpeg" media=" (max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/articles/1747110056phpbLP0kJ.jpeg" alt="" width="411" height="81"></picture></div></div>

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