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Give a reaction to show glucose molecu...

Give a reaction to show glucose molecule contains .
(i) Five hydroxyl (-OH) groups.
(ii) A terminal aldehydic group.

Text Solution

Verified by Experts

(i) It reacts with acetyl chloride or acetic anhydride , to from a penta acetyl derivative .
(ii) With bromine water it given a carboxylic acid having same number of carbon atoms as in glucose .
OR
When glucose is heated with nitric acid it froms dicarboxylic acid having same number of carbon atoms as in glucose .
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Knowledge Check

  • Glucose contains in addition to aldehyde group

    A
    one secondary OH and four primary OH groups
    B
    on eprimary OH and four secondary OH groups
    C
    two primary OH and three secondary OH groups
    D
    three primary OH and two secondary OH groups

  • Glucose contains in addition to aldehyde group

    A
    one secondary OH and four primary OH groups
    B
    one primary OH and four secondary OH groups
    C
    two primary OH and three secondary OH groups
    D
    three primary OH and two secondary OH groups

  • The polymer containing five methylene groups in its repeating unit is

    A
    Nylor 6
    B
    Nylon 6.6
    C
    Bakelite
    D
    Dacron

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