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Chemistry · 2023 · 3 marks
CBSE 2023 · Region 3 · Set 1 · Q30
Write the structure of product when D-Glucose reacts with the following: (any three) (a) HI (b) Conc. HNO_3 (c) Br_2 water (d) HCN
Write the structure of product when D-Glucose reacts with the following : (any three)
(a)
HI
(b)
Conc. $\displaystyle \mathrm{HNO}_{3}$
(c)
$\displaystyle \mathrm{Br}_{2}$ water
(d)
HCN
Marking-scheme solution
(a) \(\displaystyle \mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{4}-\mathrm{CH}_{3}\)
(b) \(\displaystyle \mathrm{HOOC}-(\mathrm{CHOH})_{4}-\mathrm{COOH}\)
(c) \(\displaystyle \mathrm{HOCH}_{2}-(\mathrm{CHOH})_{4}-\mathrm{COOH}\)
(d) 
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CBSE Class 12 Chemistry past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.