How do you explain the presence of all the six carbon atoms in glucose in a straight chain?

Which of the following is $NOT$ correct about fructose?

Glucose cannot be classified as which of the following?

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.

The difference between amylose and amylopectin is

With which reagent does glucose react to form a crystalline osazone derivative?