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

(i) When D-glucose is heated with HI for a long time, n-hexane is formed.
(CHOH)    Hl     CH3CH2 CH2CH2CH2CH2

(ii) When D-glucose is treated with Br2 water, D- gluconic acid is produced.

CHO                            CHOOH
   |                                  |
(CHOH)4      Br2water    (CHOH)4     |                              CH2OH
CH2OH                  D-gluconic acid

(iii) On being treated with HNO3, D-glucose get oxidised to give saccharic acid.

CHO                        COOH
  |                            |
(CHOH)4    HNO3   (CHOH)4   
|                             |                       
CH2OH                    CHOOH
D-glucose               Sacharic acid