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Monosaccharides

Maltose is ma...

Question

Maltose is made of:

A

α

-D-glucose

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B

α

,

β

-D-glucose

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C

glucose and fructose

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D

fructose only

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Solution

The correct option is A $α$ -D-glucose

Maltose is a disaccharide. It is formed by the linkage of the first carbon of glucose with the fourth carbon of second glucose moelcule by an alpha D glycosidic linkage.

Thus the correct answer is option $A$ .

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Similar questions

Q. Match the following.

List-I	List-II (Monomer)
A) Sucrose	i) $β$ -D-Galactose and $β$ -D-Glucose
B) Cellulose	ii) $α$ -D-Glucose and $β$ -D-Fructose
C) Starch	iii) $β$ -D-Glucose
D) Lactose	iv) $α$ -D-Glucose

Q. Match List - I with List -II

List-I	List-II
a. Sucrose	i. $β$ -D-Galactose and $β$ -D-Glucose
b. Lactose	ii. $α$ -D-Glucose and $β$ -D-Fructose
c. Maltose	iii. $α$ -D- Glucose and $α$ -D-Glucose

Choose the correct answer from the options given below:

The enantiomer of $α - D - (+) -$ glucose is ?

Q. The enthalpy changes of some process are given below :

α - D - g l u c o s e_{(s)} + H_{2} O ⟶ α - D - g l u c o s e_{(a q)}; Δ H_{d i s s o l u t i o n} = 10.84 k J

.

β - D - g l u c o s e_{(s)} + H_{2} O ⟶ β - D - g l u c o s e_{(a q)}; Δ H_{d i s s o l u t i o n} = 4.68 k J

.

α - D - g l u c o s e_{(a q)} ⟶ β - D - g l u c o s e_{(a q)}; Δ H_{m u t a r o t a t i o n} = - 1.16 k J

Δ H^{\circ}

α - D - g l u c o s e ⟶ β - D - g l u c o s e

Q. Equimolar mixture of a

α - D (+)

β - D (+)

-glucose has specific rotation (

{[α]}_{D}

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