JEE Main 2026 · 5 Apr · Shift 2 · Chemistry Q69

← JEE Main 2026 · 5 Apr · Shift 2

ChemistrySingle correct+4 / -1Question 69 of 75

Given below are two statements :

Statement I: The two structures shown (Haworth projections) are two anomers of D-(+)-glucose.

Statement II: The open chain forms of D-glucose and D- fructose contain three similar chiral carbons at $C_3$ , $C_4$ and $C_5$ .

In the light of the above statements, choose the correct answer from the options given below :

Two Haworth projections of D-glucopyranose joined by 'and': the left has the C-1 OH down (α-anomer), the right has the C-1 OH up (β-anomer); CH₂OH is up on C-5 in both.

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Answer and worked solution

Official answer: A

Statement I. Both are D-glucopyranose. They differ only at C-1: OH down is α, OH up is β. They are the two anomers of D-(+)-glucose. True.

Statement II. Open-chain D-glucose has chiral C2-C5. D-fructose (C2 is the ketone) has chiral C3-C5 with the same configurations as glucose. True.

(A)

Topics:Carbohydrates

← Previous question Next question →

JEE Main 2026 · 5 Apr · Shift 2, Chemistry question 69