Six-membered cyclic hemiacetals and five-membered cyclic hemiacetals are called, respectively, . six-membered cyclic hemiacetals and five-membered cyclic hemiacetals are called, respectively, . glycoses and fructoses pyranoses and fructoses maltoses and arabinoses mannoses and xyloses none of the above

Six-membered cyclic hemiacetals and five-membered cyclic hemiacetals are called, respectively, none of the above.

Explanation:

Pyranoses and furanoses are the terms used to mention the six-membered cyclic hemiacetals and five-membered cyclic hemiacetals respectively.

Pyranose is a saccharide having a chemical structure that includes a six-membered ring. One oxygen atom and five carbon atoms are present in the six-membered ring. The external part of the ring may have some carbons.

The carbohydrates having a chemical structure with a five-membered ring system is known as furanoses. One oxygen atom and four carbon atoms and are present in the five-membered ring system. There is no chance of double bonds in the furanose ring.

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