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Products of glucose or fructose with HI, bromine water, HNO3, HCN and acetic anhydride

This type of question, asked 4 times: 27 Jul 2022, 28 Jul 2022, 31 Jan 2024, 22 Jan 2026 S2. All 4 questions below, oldest first.

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  1. Question 1

    27 Jul 2022

    137
    Match List-I with List-II.
    List-IList-II
    (A) Glucose +HI+ HI(I) Gluconic acid
    (B) Glucose +Br2+ Br_{2} water(II) Glucose pentacetate
    (C) Glucose ++ acetic anhydride(III) Saccharic acid
    (D) Glucose +HNO3+ HNO_{3}(IV) Hexane
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  2. Question 2

    28 Jul 2022

    139
    Fructose gives AA with HCNHCN followed by H3O+H_{3}O^{+}, and gives BB with (i) NaBH4NaBH_{4}, (ii) HI/PHI/P. The formulas of AA and BB are

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  3. Question 3

    31 Jan 2024

    48
    Match List I with List II
    LIST-ILIST-II
    A.Glucose/NaHCO3NaHCO_{3}/Δ\DeltaI.Gluconic acid
    B.Glucose/HNO3HNO_{3}II.No reaction
    C.Glucose/HI/ Δ\DeltaIII.n-hexane
    D.Glucose/Bromine waterIV.Saccharic acid
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  4. Question 4

    22 Jan 2026 S2

    35
    Match List-I with List-II.
    List-I Reaction of glucose withList-II Product formed
    (A)Hydroxylamine(I)Gluconic acid
    (B)Br2{Br}_{2} water(II)Glucose pentaacetate
    (C)Excess acetic anhydride(III)Saccharic acid
    (D)Concentrated HNO3{HNO}_{3}(IV)Glucoxime
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