What happens when D-glucose is treated with the following reagents?
i) HI ii) Bromine water ii) HNO₃

i) HI : D-Glucose on treatment with HI gives n–Hexane
${\mathrm{CH}}_2\mathrm{OH}-(\mathrm{CHOH}{)}_4\mathrm{CHO}\stackrel{\mathrm{HI}}{⟶}\underset{\mathrm{n}-\mathrm{hexane}}{{\mathrm{CH}}_3-{\left({\mathrm{CH}}_2\right)}_4-{\mathrm{CH}}_3}$
ii) Bromine water : D-Glucose is oxidised to Gluconic Acid on treatement with Bromine water

iii) HNO₃ : D–Glucose is oxidised to saccharic acid on treatment with Nitric acid (HNO₃)