Write chemical reaction to show that open structure of D-glucose contains the following:
(i) Straight chain
(ii) Five alcohol groups
(iii) Aldehyde as carbonyl group

Explanation

To demonstrate that the open structure of D-glucose contains a straight chain, five alcohol groups, and an aldehyde as a carbonyl group, we can write the following chemical reactions:

### Step 1: Confirming the Straight Chain
The open-chain structure of D-glucose can be represented as follows:

\[ \text{C}_6\text{H}_{12}\text{O}_6 \]

This structure can be written as:
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