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Products of acid hydrolysis of sugars, including invert sugar from sucrose

This type of question, asked 6 times: 2021 Paper 17, 2021 Paper 21, 28 Jun 2022, 28 Jan 2025, 7 Apr 2025, 22 Jan 2026 S1. All 6 questions below, oldest first.

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  1. Question 1

    2021 Paper 17

    41
    Compound AA gives D-Galactose and D-Glucose on hydrolysis. The compound AA is:

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  2. Question 2

    2021 Paper 21

    47
    Hydrolysis of sucrose gives:

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  3. Question 3

    28 Jun 2022

    139
    When sugar ' XX ' is boiled with dilute H2SO4H_{2}SO_{4} in alcoholic solution, two isomers ' AA ' and ' BB ' are formed. 'A' on oxidation with HNO3HNO_{3} yields saccharic acid whereas ' BB ' is laevorotatory. The compound ' XX ' is:

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  4. Question 4

    28 Jan 2025

    107
    Identify correct conversion during acidic hydrolysis from the following : (a) starch gives galactose. (b) cane sugar gives equal amount of glucose and fructose. (c) milk sugar gives glucose and galactose. (d) amylopectin gives glucose and fructose. (e) amylose gives only glucose. Choose the correct answer from the options given below :

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  5. Question 5

    7 Apr 2025

    43
    Given below are two statements : Statement I: D-(+)-glucose + D-(+) fructose →−H2O \overset{- H_{2}O\ }{\rightarrow} sucrose sucrose → Hydrolysis  \overset{\text{~Hydrolysis~}\ }{\rightarrow} D-(+)-glucose + D-(+) fructose Statement II : Invert sugar is formed during sucrose hydrolysis. In the light of the above statements, choose the correct answer from the options given below

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  6. Question 6

    22 Jan 2026 S1

    40
    Given below are two statements: Statement I: Sucrose is dextrorotatory. However sucrose upon hydrolysis gives a solution having mixture of products. This solution shows laevorotation. Statement II : Hydrolysis of sucrose gives glucose and fructose. Since the laevorotation of glucose is more than the dextrorotation of fructose the resulting solution becomes laevorotatory. In the light of the above statements, choose the correct answer from the options given below.

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