Question:easy
Chemically, carbohydrate is:
Chemically, carbohydrate is:
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To remember their composition, look closely at their open-chain forms: "Polyhydroxy" means they are rich in alcohol ($-OH$) groups, while "Aldehyde or Ketone" indicates the unique functional backbone that determines how they react as reducing or non-reducing sugars.
Updated On: Jun 2, 2026
- Acid
- Polyhydride or Aldehyde or Ketone
- Alcohol
- None Correct Answer: (B) Polyhydride or Aldehyde or Ketone
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Look at the structure.
A carbohydrate carries many hydroxyl groups along with one carbonyl group.
Step 2: Name the groups.
If that carbonyl is an aldehyde, the sugar is an aldose like glucose. If it is a ketone, the sugar is a ketose like fructose. So carbohydrates are polyhydroxy aldehydes or ketones. Here polyhydride is used in place of polyhydroxy.
Step 3: Choose the option.
This matches polyhydride or aldehyde or ketone.
\[ \boxed{\text{Polyhydride or Aldehyde or Ketone}} \]
A carbohydrate carries many hydroxyl groups along with one carbonyl group.
Step 2: Name the groups.
If that carbonyl is an aldehyde, the sugar is an aldose like glucose. If it is a ketone, the sugar is a ketose like fructose. So carbohydrates are polyhydroxy aldehydes or ketones. Here polyhydride is used in place of polyhydroxy.
Step 3: Choose the option.
This matches polyhydride or aldehyde or ketone.
\[ \boxed{\text{Polyhydride or Aldehyde or Ketone}} \]
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