Chemistry - Biomolecules Question with Solution | TestHub
Read the following statements.
(i) Haworth structure of α glucose will be
(ii) Fructose belongs to D -series and is a laevorotatory compound.
(iii) Haworth structure for -D-fructose will be.
(iv) Fructose contains a ketonic functional group at carbon atom. Which of the following is the correct code for the statements above?
Options:
Answer:
Solution:
Question Explanation:
The question asks you to judge the four statements about the structure and properties of glucose and fructose.
Concept:
This question is based on glucose and fructose structures.
Solution:
Statement (i) is false – the Haworth formula shown is actually that of β-D-glucose, not the α-anomer.
Statement (ii) is true – fructose is a D-sugar and rotates plane-polarized light to the left (laevorotatory).
Statement (iii) is true – the Haworth projection given corresponds to β-D-fructofuranose. Statement (iv) is true – fructose is a ketohexose with its C=O at C-2.
The correct answer is 1- (F T T T).
Final Answer: Option (A)
