Which of the following is a polysaccharide?

Match the structures in Row $I$ with their names in Row $II$.
Row $I$:
$(P)$ $\alpha-D-(+)-$Glucopyranose
$(Q)$ $\beta-D-(+)-$Glucopyranose
$(R)$ $\alpha-D-(-)-$Fructofuranose
$(S)$ $\beta-D-(-)-$Fructofuranose
Row $II$:
$(i)$ $\alpha-D-(-)-$Fructofuranose
$(ii)$ $\beta-D-(-)-$Fructofuranose
$(iii)$ $\alpha-D-(+)-$Glucopyranose
$(iv)$ $\beta-D-(+)-$Glucopyranose
Correct match is:

Identify the sugar molecule involved in polynucleotide formation.

The product$(s)$ formed when glucose reacts with a strong oxidising agent like $HNO_3$ is/are

Which of the following represents the anomer of the compound shown?

The incorrect statement from the following with respect to carbohydrates is: