MCQ
Which of the following structures represents $\alpha - D$ -glucose ?
- ✓

- B

- C

- D






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Assertion $A:$ $3.1500\,g$ of hydrated oxalic acid dissolved in water to make $250.0\,mL$ solution will result in $0.1\,M$ oxalic acid solution.
Reason $R:$ Molar mass of hydrated oxalic acid is $126\,g\,mol ^{-1}$.
In the light of the above statements, chose the correct answer from the options given below:

Reason $(R)$ : Oxygen forms $\mathrm{p} \pi-\mathrm{p} \pi$ multiple bonds with itself and other elements having small size and high electronegativity like $\mathrm{C}, \mathrm{N}$, which is not possible for sulphur.
In the light of the above statements, choose the most appropriate answer from the options given below :