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JEE MAIN_2026
05-04-26_S1
Question
Identify the correct statements.
A. Glucose exists in two anomeric forms.
B. Anomers of glucose differ in configuration at $\mathrm{C}-1$ in cyclic hemiacetal structure.
C. Melting point of $\alpha$-anomer of glucose is greater than $\beta$-anomer.
D. Specific rotation of $\alpha$-anomer is $+19^{\circ}$ while for $\beta$-anomer is $+112^{\circ}$
E. $\alpha$ and $\beta$-anomers of glucose are prepared by crystallization of saturated glucose solution at 303 K and 371 K respectively.
Choose the correct answer from the options given below:
Select the correct option:
A
A and B Only
B
B and C Only
C
A, B and D Only
D
A, B and E Only
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Anomers of glucose differ in configuration at C-1 in cyclic hemiacetal structure. $$ \begin{aligned} & \therefore \alpha \text {-anomer } \Rightarrow \mathrm{m} \cdot \mathrm{p} \cdot \rightarrow 419 \mathrm{~K} \\ & \beta \text {-anomer } \Rightarrow \mathrm{m} \cdot \mathrm{p} \cdot \rightarrow 423 \mathrm{~K} \end{aligned} $$ $\Rightarrow \alpha$ and $\beta$-anomers of glucose are prepared by crystallization of saturated glucose solution at 303 K and 371 K respectively. $\mathrm{A}, \mathrm{B}, \mathrm{E} \Rightarrow$ correct.
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