Question

Assertion (A) Rhamnose is not a carbohydrate.
Reason (R) Rhamnose does not fit into the general formula of carbohydrate i.e., $C _{x}\left( H _{2} O \right)_{y}$.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$.
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$.
• C. $A$ is correct but $R$ is incorrect.
• D. $R$ is correct but $A$ is incorrect.

Answer 1

Answer: (D)

Rhamnose $\left( C _{6} H _{12} O _{5}\right)$ is a carbohydrate but does not fit into the definition of carbohydrate. Carbohydrates may be defined as optically active polyhydroxy aldehydes or ketones or compounds which produce such units on hydrolysis.