MCQ

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Assertion $(A):$ Glucose does not form the hydrogensulphite addition product with $\ce{NaHSO_3}.$
Reason $(R):$ Glucose exists in a six$-$membered cyclic structure called pyranose structure

• A
  Both $A$ and $R$ are true and $R$ is the correct explanation of $A .$
• B
  Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$
• C
  $A$ is true but $R$ is false.
• ✓
  $A$ is false but $R$ is true.