`alpha`-maltose consists of

Options

A. One `alpha`-D-glucopyranose unit and one `beta`-D-glucopyranose unit with 1-2 glycosidic linkage
B. Two `alpha`-D-glucopyranose unita with 1-2 glycosidic linkage
C. Two `beta`-D- glucopyranose units with 1-4 glycosidic linkage
D. two `alpha`-D-glucopyranose unit with 1-4 glycosidic linkage

Answer

D

Explanation

`alpha`-maltose consists of two `alpha`-D-glucopyranose units with 1,4-glucosidic linkage.

Now,`(A+B)^(T)+B^(T)+B^(T)=A+B`
Also,`(A-B)^(T)=A^(T)-B^(T)=A-B`
`(AB+BA)^(T)=(AB)^(T)+(BA)^(T)=B^(T)A^(T)+A^(T)B^(T)` `(AB-BA)^(T)=(AB)^(T)-(BA)^(T)=B^(T)A^(T)-A^(T)B^(T)`