Is Cellulose ketohexose or aldohexose? How does Cellulose give result in Seliwanoff's test (any color change) ?

Cellulose is an aldohexose

Explanation:

Cellulose is an aldohexose, because, it has an aldehyde group present at one of the end.

Seliwanoff's test

It is the test to differentiate between a ketose and an aldose.

The test is as follows -

If the sample is heated and it it readily gets dehydrated, then the sample is a ketose.

And, the reaction of Seliwanoff's reagent and ketose, give a red color, which is the positive sign for the test.

But,

the reaction of Seliwanoff's reagent and aldoses, give a very light pink color.