The six-membered cyclic structure of glucose is called pyranose structure ( $\alpha$ - or $\beta-$ ), in analogy with pyran which is a cyclic organic compound with one oxygen and five carbon atoms in the ring.
Hence, ring $(i)$ is pyranose.
The ring $(i)$ is pyranose with $\alpha$-glycosidic linkage which means the oxide linkage which connects the monosaccharide units in polysaccharide below the plane.
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$2K\,Cl{O_3}\xrightarrow{{}}2KCl + 3{O_2}$ law of mass action
| $p ( mm Hg )$ | $50$ | $100$ | $200$ | $400$ |
| Relative $t _{1 / 2}( s )$ | $4$ | $2$ | $1$ | $0.5$ |
The order of the reaction is
......$kJ/mole$
