MHT CET 2023 Chemistry question

In which of the following carbohydrate, molecular mass increases by 84 u after complete acetylation?

(A)AldotrioseCorrect
(B)Aldotetrose
(C)Ketotetrose
(D)Ketopentose

Answer: (A)

Solution

In complete acetylation every –OH group is converted to –OCOCH, replacing H (1 u) by COCH (43 u), i.e. a gain of 42 u per –OH group. A gain of 84 u therefore means two –OH groups. Aldotriose

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-098349