The aqueous solution of a carbohydrate gives a dark blue colour with iodine. It is

Which set of terms correctly identifies the carbohydrate shown?
$1$. Pentose $2$. Pentulose $3$. Hexulose $4$. Hexose
$5$. Aldose $6$. Ketose $7$. Pyranose $8$. Furanose

Reactions with sugars are easy in acidic or neutral media,but not in alkaline media,because in alkaline media,sugars undergo.............

What is the number of stereoisomers for $D$-glucose ($6$ carbon sugar)?

Identify the correct statements.
$A$. Glucose exists in two anomeric forms.
$B$. Anomers of glucose differ in configuration at $C-1$ in cyclic hemiacetal structure.
$C$. Melting point of $\alpha$-anomer of glucose is greater than $\beta$-anomer.
$D$. Specific rotation of $\alpha$-anomer is $+19^\circ$ while for $\beta$-anomer is $+112^\circ$.
$E$. $\alpha$ and $\beta$-anomers of glucose are prepared by crystallization of saturated glucose solution at $303 \text{ K}$ and $371 \text{ K}$ respectively.

Glucose is a/an: