Q46 / 150 · MHT CET 2026 (15 April Shift 1) · Chemistry
Which of the following is confirmed by the reaction of glucose with hydroxylamine?
- AStraight chain of six carbon atoms
- Correct answerBCarbonyl group
- CPrimary alcoholic group
- DSecondary alcoholic group
Solution
Glucose reacts with hydroxylamine ($NH_2OH$) to form an oxime.
This reaction is a characteristic property of aldehydes and ketones, which confirms the presence of a carbonyl group ($>C=O$) in the glucose molecule.
The reaction with hydrogen iodide ($HI$) confirms the straight chain of six carbon atoms, while oxidation with nitric acid confirms the primary alcoholic group.
Answer: Carbonyl group
This reaction is a characteristic property of aldehydes and ketones, which confirms the presence of a carbonyl group ($>C=O$) in the glucose molecule.
The reaction with hydrogen iodide ($HI$) confirms the straight chain of six carbon atoms, while oxidation with nitric acid confirms the primary alcoholic group.
Answer: Carbonyl group
Hence, the correct answer is option: 'B'.