Question

(vii) Name the reagent which on reaction with glucose confirms
presence of primary alcoholic group in glucose :
(a) Hot HI
(b) Bromine water
(c) Dilute HNO
(d) Hydroxyl amine
3​

Answer 1

Explanation:

Ozudation of glucose with HNO3 give carboxylic acid which confirm the presence of alcohol

Answer 2

• The reagent which on reaction with glucose (C₆H₁₂O₆) confirms  the presence of the primary alcoholic group in glucose is dilute nitric acid (HNO₃).
• Oxidation of glucose (C₆H₁₂O₆) with dilute nitric acid (HNO₃) gives carboxylic acid(-COOH).
• Here, the glucose (C₆H₁₂O₆) will convert into Saccharic acid (C₆H₁₀O₈).
• This confirms the presence of alcohol in glucose (C₆H₁₂O₆).

Hence, the correct option is (c) Dilute nitric acid (HNO₃).