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Structural and Physical Properties of Carbonyls

The correct n...

Question

The correct name of the 'sucrose' is

α - D -

glucopyranosyl

- β - D -

fructofuranoside

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β - D -

glucopyranosyl

- β - D -

fructofuranoside

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α - D -

glucopyranosyl

- α - D -

fructofuranoside

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β - D -

glucopyranosyl

- α - L -

fructofuranoside

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Solution

The correct option is A $α - D -$ glucopyranosyl $- β - D -$ fructofuranoside
Sucrose (common name: table sugar, also called saccharose) is a disaccharide (glucose + fructose) with the molecular formula $C_{12} H_{22} O_{11}$ .

$Its systematic name is$ $α - D - g l u c o p y r a n o s y l 11 - β - D - f r u c t o f u r a n o s i d e$

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

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

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