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प्रश्न
Glucose on reaction with HI gives n-hexane. What does it suggest about the structure of glucose?
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उत्तर
The reaction of glucose with HI giving n-hexane suggests that all the six carbon atoms are linked in a straight chain, as shown in the reaction given below:
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संबंधित प्रश्न
How many moles of acetic anhydride will be required to form glucose pentaacetate from 2M of glucose?
(a) 2
(b) 5
(c) 10
(d) 2.5
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(a) Polysaccharide
(b) Disaccharide
(c) Trisaccharide
(d) Monosaccharide
Fill in the blanks by choosing the appropriate word/words from those given in the brackets:
(iodoform, acetaldehyde, positive, greater, acidic, acetone, disaccharide, negative, increases, glucose, decreases, chloroform, polysaccharide, lactose, lesser, basic, cationic hydrolysis, anionic hydrolysis)
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What do you observe when glucose is treated with bromine water?
Which one of the following compounds is different from the rest?
Glucose is found to exist in two different α and β crystalline forms. These forms can be obtained by:
(i) The α form of glucose is obtained by crystallisation from a concentrated solution of glucose at 303 K.
(ii) The β form of glucose is obtained by crystallisation from a concentrated solution of glucose at 303 K.
(iii) The β form is obtained by crystallisation from hot and saturated aqueous solution at 371 K.
(iv) The α form is obtained by crystallisation from hot and saturated aqueous solution at 371 K.
Which of the following reactions of glucose can be explained only by its cyclic structure?
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The letter D and L in carbohydrates represent ____________.
Account for the following:
What happens when D – glucose is treated with the following reagents
Bromine water
