Which set of the terms correctly identifies the carbohydrate shown?

(i) Pentose                  (ii) Hexose               (iii) Aldose

(iv) Ketose                  (v) Pyranose             (vi) Furanose

Select the incorrect statements from the following:

(a) Glucose exists in $2$ different crystalline forms, $\mathrm{\alpha }$-D-glucose and $\mathrm{\beta }$-D-glucose.

(b) $\mathrm{\alpha }$-D-glucose and $\mathrm{\beta }$-D-glucose are enantiomers.

(c) Cellulose is a straight-chain polysaccharide, made of only $\mathrm{\beta }$-D-glucose units.

(d) Starch is a mixture of amylose and amylopectin both contain unbranched chain on $\mathrm{\alpha }$-D-glucose units.

Which of the following processes/reactions will give a diastereomeric pair in the resulting solution?

(a) Mutarotation of glucose

(b) Ekenstein rearrangement of D-mannose

(c) Acidic hydrolysis of cane sugar

(d) Open form of D-glucose with $\mathrm{HCN}$

Given: specific rotation of $(+)$ sucrose, $(+)$ maltose, $\mathrm{L}(-)$ glucose, $\mathrm{L}(+)$ fructose in aqueous, solution are $+66°,+140°,-52°$and$+92°$respectively. For 'invert sugar', the correct statements are?

(a) 'Invert sugar' is prepared by acid-catalyzed hydrolysis of maltose

(b) 'Invert sugar' is an equimolar mixture of $\mathrm{D}(+)$ glucose and $\mathrm{D}(-)$ fructose

(c) Specific rotation of  'invert sugar' is $(-20°)$

(d) On reaction with ${\mathrm{Br}}_2$ water ' invert sugar' forms saccharic acid as one of the products.

Analyse the following reactions and identify incorrect statements where $\mathrm{X}$ and $\mathrm{Y}$ are two different aldohexoses and $\mathrm{Z}$ is a ketohexoses.

Disaccharide $\left(\mathrm{A}\right)\stackrel{{\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}^{+}}{\to }\mathrm{X}+\mathrm{Z}$

Disaccharide $\left(\mathrm{B}\right)\stackrel{{\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}^{+}}{\to }2\mathrm{X}$

Disaccharide $\left(\mathrm{C}\right)\stackrel{{\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}^{+}}{\to }\mathrm{X}+\mathrm{Y}$

(a) $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ are reducing sugars.

(b) $\mathrm{B}$ and $\mathrm{C}$ have ${\mathrm{C}}_1-{\mathrm{C}}_4$ glycosidic linkage between two monosaccharide units.

(c)The two monosaccharide units of disaccharide 'C' are ${\mathrm{C}}_4$ epimers.

(d) All the three disaccharides undergo mutarotation.

Which of the following is incorrect about sucrose?