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(a). Name the smallest aldose which form...

(a). Name the smallest aldose which forms cyclic hemiacetal and the functional groups are involved in its formation.
(b). What is invert sugar ?
(c ). Calculate the specific rotation of invert sugar. Given, `|alpha|_(D)"of" D-glucose=52.7^(@)`
`|alpha|_(D) "of" D-fructose=-92.4^(@)`
(d). Give the mechanism of mutarotaion of `beta-D-` gluoco-pyranose in (i) `aq. H^(oplus)` and (ii) `overset(Θ)(O)H`.
(e). Why is the mutaraotation faster in the presence of `2-`pyridinol?

Text Solution

Verified by Experts

The smallest aldose is a tetrose which has four C atoms and an O to form a five membered ring.
The `-CHO` and primary `-OH` groups are incorporated in the ring.
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