Answer: Sorbitol.
- A Gluconic acid
- B Saccharic acid
- C Sorbitol
- D Glucose oxime
Correct answer: C. Sorbitol
Explanation: Reduction of the aldehyde group of glucose gives the hexahydric alcohol sorbitol (glucitol). Mild oxidation gives gluconic acid and strong oxidation gives saccharic acid.
Two amino acids join via a condensation reaction: the carboxyl -OH of one and an amine -H of the other are eliminated as water, leaving a peptide bond (-CO-NH-) linking them into a dipeptide; repeating this builds a full protein chain.
Concept context
The chemistry of life: carbohydrates, proteins, lipids, nucleic acids, enzymes, and vitamins. Understand their structures, classification, and biological functions. Highly relevant for NEET and Class 12 board exams.