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Question
How many hydroxyl groups are present in Erythrulose?
Options
3
4
2
5
MCQ
Solution
3
Explanation:
\[\begin{array}{cc}
\phantom{.....}\ce{CH2OH}\\
|\phantom{..}\\
\phantom{....}\ce{C = O}\\
|\phantom{..}\\
\ce{H - C - OH}\\
|\phantom{..}\\
\phantom{.....}\ce{CH2OH}
\end{array}\]
Erythrulose has in total 3 −OH and one C = O groups
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Biomolecules in the Cell - Carbohydrates
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