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प्रश्न
What are the expected products of hydrolysis of lactose?
What are the hydrolysis products of lactose?
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उत्तर
Lactose is composed of β-D galactose and β-D glucose. On hydrolysis, it gives two molecules of lactose monosaccharide, i.e., one molecule each of D-(+)-glucose and D-(+)-galactose.
\[\ce{\underset{Lactose}{C12H22O11} + H2O ->[H3O+][or Lactose] \underset{D-(+)-glucose}{C6H12O6} + \underset{D-(+)-galactose}{C6H12O6}}\]
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संबंधित प्रश्न
Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six membered ring compounds) are insoluble in water. Explain.
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Classify the following into monosaccharides and disaccharides.
Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose
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The number of primary and secondary hydroxyl groups in ribose are -
(a) 1, 3
(b) 2, 3
(c) 3, 1
(d) 3, 2
The following molecule is called as:
\[\begin{array}{cc}
\ce{CHO}\phantom{..}\\
|\phantom{......}\\
\ce{(CHOH)4}\\
|\phantom{......}\\
\ce{CH2OH}
\end{array}\]
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Which of the following gives a positive Fehling solution test?
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Which of the following monosaccharide is pentose?
A carbohydrate that cannot be hydrolysed into simpler units is called ____________.
Reducing sugars reduce ____________.
Which of the following reagent cannot distinguish between glucose and fructose?
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Account for the following:
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