✓ Board-verified
Chemistry · 2026 · 1 mark
CBSE 2026 · Region 5 · Set 1 · Q13
Assertion (A): D (+)- Glucose is dextrorotatory in nature. Reason (R): (+) represents dextrorotatory nature and D represents the configuration.
Assertion $\displaystyle (A): \mathrm{D}(+)-$ Glucose is dextrorotatory in nature.
Reason (R) : (+) represents dextrorotatory nature and D represents the configuration.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
More from Biomolecules
- Assertion: Vitamin C cannot be stored in our body. Reason (R): Vitamin C is water soluble and readily excreted in urine.2024 · asked 2×
- Write two differences between DNA and RNA. 1 × 22023 · asked 2×
- Differentiate between the following: 2 × 1 (i) Acidic amino acids and basic amino acids (ii) Nucleotide and Nucleoside2026
- Assertion: Glucose gets oxidized to six carbon gluconic acid on reaction with bromine water. Reason (R): The carbonyl group is absent in the open…2026
- Living systems are made up of various complex biomolecules like carbohydrates, proteins, nucleic acids, lipids, etc. Carbohydrates are optically…2023
- Helical structure of proteins is stabilized by:2023
- Assertion: The pentaacetate of glucose does not react with H_2 N-OH. Reason (R): It indicates the presence of free - CHO group in glucose.2026
- Write the reactions of glucose with: H_2 N-OH Br_2 water2024
CBSE Class 12 Chemistry past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.