If $\alpha$-D-glucose is dissolved in water and kept for a few hours, the major constituent(s) present in the solution is (are)

• A

  $\alpha$-D-glucose
• B

  mixture of $\beta$-D-glucose and open chain D-glucose open chain D-glucose
• C

  open chain D-glucose
• Correct answer
  D

  mixture of $\alpha$-D-glucose and $\beta$-D-glucose

Hence, the correct answer is option: 'D'.