1. Tardigrade
  2. Question
  3. Chemistry
  4. How many of the following will produce gluconic acid or it's salt when treated with D- Glucose (a) Tollen's reagent (b) HNO3 (c) Br2/ water (d) HIO4 (e) Fehling's solution (f) Red P/HI/Δ (g) Benedict's solution (h) PhNHNH2 (i) HCN

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Q. How many of the following will produce gluconic acid or it's salt when treated with $D-$ Glucose
(a) Tollen's reagent
(b) $HNO_{3}$
(c) $Br_{2}/$ water
(d) $HIO_{4}$
(e) Fehling's solution
(f) Red $P/HI/\Delta $
(g) Benedict's solution
(h) $PhNHNH_{2}$
(i) $HCN$

NTA AbhyasNTA Abhyas 2022

Solution:

D-glucose oxidised to gluconic acid by reacting with Tollen's reagent, $Br_{2}$ / water, benedict's solution and fehling's solution.
On reacting with nitric acid, which is a strong oxidising agent, D-glucose convert into saccharic acid, which is dicarboxylic acid.
On reacting with Red $P/HI/\Delta $ , which is a strong reducing agent, D-glucose convert into n-hexane.
$PhNHNH_{2}$ form hydrazine by reacting with aldehyde group of D-glucose.
$HCN$ form cyanohydrin with glucose.
$HIO_{4}$ on reacting glucose form formic acid and formaldehyde.