Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?

Which of the following statements is incorrect about $\alpha-D$-glucopyranose and $\beta-D$-glucopyranose?

Which of the following derivatives is useful for the identification of reducing sugars?

Compound $A$,$C_5H_{10}O_5$,gives a tetraacetate with $Ac_2O$ and oxidation of $A$ with $Br_2-H_2O$ gives an acid,$C_5H_{10}O_6$. Reduction of $A$ with $HI$ gives isopentane. The possible structure of $A$ is:

Given below are two statements:
Statement $I:$ Fructose does not contain an aldehydic group but still reduces Tollen's reagent.
Statement $II:$ In the presence of base,fructose undergoes rearrangement to give glucose.
In the light of the above statements,choose the correct answer from the options given below:

Which one of the following structures represents amylose?