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

Explanation

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

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

\[ \text{D-glucose: } CHO-CHOH-CHOH-CHOH-CHOH-CH2OH \]
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