chemistry-class-12-unit-14-chapter-05-biomolecules-l-5-12-tr3k-lhcoee

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Biomolecules Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Problem</B></primary></p>
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<li>When D-tagatose is added to a basic aqueous solution, an equilibrium mixture of monosaccharides is obtained two of which are aldohexoses and two of which are ketohexoses. Identify the aldohexoses and ketohexoses</li>
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<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-14-chapter-05-biomolecules-l-5_12-tr3k_lhcoee-06.jpg"></p>
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<footer style="font-size:18px;"> Reactions of monosaccharides in basic solutions $\rightarrow$ Structure $\rightarrow$ Enediol rearrangement $\rightarrow$ <span style="color:blue">Problem</span> $\rightarrow$ Solution $\rightarrow$ Oxidation $\rightarrow$ D glucitol $\rightarrow$ Reaction of D - glucose </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Biomolecules Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Solution</B></primary></p>
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<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/6095108b-cb0c-4c85-e2c8-e68ae266ce00/public" width="25%">

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<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-14-chapter-05-biomolecules-l-5_12-tr3k_lhcoee-07.jpg"></p>
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<footer style="font-size:18px;"> Reactions of monosaccharides in basic solutions $\rightarrow$ Structure $\rightarrow$ Enediol rearrangement $\rightarrow$ Problem $\rightarrow$ <span style="color:blue">Solution</span> $\rightarrow$ Oxidation $\rightarrow$ D glucitol $\rightarrow$ Reaction of D - glucose </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Biomolecules Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Oxidation</B></primary></p>
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<li><strong>Oxidation : reduction reactions of monosaccharides -</strong></li>
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<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/16237a5f-fbff-4efd-0262-e9cd01e06d00/public" width="30%">

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<hr>
<footer style="font-size:18px;"> Reactions of monosaccharides in basic solutions $\rightarrow$ Structure $\rightarrow$ Enediol rearrangement $\rightarrow$ Problem $\rightarrow$ Solution $\rightarrow$ <span style="color:blue">Oxidation</span> $\rightarrow$ D glucitol $\rightarrow$ Reaction of D - glucose </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Biomolecules Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>D glucitol</B></primary></p>
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<p>D glucitol - also called sorbitol is about 60% as sweet as sucrose</p>
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<p>It is found in plums, pears, cherries and berries</p>
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<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-14-chapter-05-biomolecules-l-5_12-tr3k_lhcoee-10.jpg"></p>
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<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-14-chapter-05-biomolecules-l-5_12-tr3k_lhcoee-09.jpg"></p>
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<hr>
<footer style="font-size:18px;"> Reactions of monosaccharides in basic solutions $\rightarrow$ Structure $\rightarrow$ Enediol rearrangement $\rightarrow$ Problem $\rightarrow$ Solution $\rightarrow$ Oxidation $\rightarrow$ <span style="color:blue">D glucitol</span> $\rightarrow$ Reaction of D - glucose </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Biomolecules Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Reaction of D - glucose</B></primary></p>
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<p>Both aldoses and ketoses are oxidized $=$ aldonic acid by Tollen’s reagent( $Ag^+$,$NH_3$ , $OH^-$)</p>
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<p>The oxidizing agent in Tollens reagant is $\mathrm{Ag}^{+} \longrightarrow \mathrm{Ag}$ metallic silver</p>
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<p>The oxidizing agent in Tollens reagant is $\mathrm{Ag}^{+} \longrightarrow \mathrm{Ag}$ metallic silver</p>
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<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/c8d82f3e-ab05-4f70-646f-0edc7ecc9800/public" width="90%">

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<hr>
<footer style="font-size:18px;"> Reactions of monosaccharides in basic solutions $\rightarrow$ Structure $\rightarrow$ Enediol rearrangement $\rightarrow$ Problem $\rightarrow$ Solution $\rightarrow$ Oxidation $\rightarrow$ D glucitol $\rightarrow$ <span style="color:blue">Reaction of D - glucose</span> </footer>