Q45. The correct observation in the following reaction is: Gly cosidic bond Seliw anoff −−Sucrose → A + B → ? Cleavage (Hydrolysis) Reagent (1) Formation of blue colour (2) Gives no colour (3) Formation of red colour (4) Formation of violet colour
What This Question Tests
This question tests the knowledge of sucrose hydrolysis products and the specific chemical tests for carbohydrates, particularly the Seliwanoff test for ketoses like fructose.
Concepts Tested
📚 NCERT Sections This Tests
3.25 — Sucrose Decomposes In Acid Solution Into Glucose And Fructose According
Chemistry Class 11 · Chapter 3
3.25 Sucrose decomposes in acid solution into glucose and fructose according to the first order rate law, with t1/2 = 3.00 hours. What fraction of sample of sucrose remains after 8 hours ?
5.13 — Aqueous Copper Sulphate Solution (Blue In Colour) Gives:
Chemistry Class 11 · Chapter 5
5.13 Aqueous copper sulphate solution (blue in colour) gives: (i) a green precipitate with aqueous potassium fluoride and (ii) a bright green solution with aqueous potassium chloride. Explain these experimental results.
6.22 — What Happens When
Chemistry Class 12 · Chapter 6
6.22 What happens when (i) n-butyl chloride is treated with alcoholic KOH, (ii) bromobenzene is treated with Mg in the presence of dry ether, (iii) chlorobenzene is subjected to hydrolysis, (iv) ethyl chloride is treated with aqueous KOH, (v) methyl bromide is treated with sodium in the presence of dry ether, (vi) methyl chloride is treated with KCN? Answers to Some Intext Questions 6.1 6.2 (i) H2SO4 cannot be used along with KI in the conversion of an alcohol to an alkyl iodide as it converts KI to corresponding acid, HI which is then oxidised by it to I2. 6.3 (i) ClCH2CH2CH2Cl (ii) ClCH2CHClCH3 (iii) Cl2CHCH2CH3 (iv) CH3CCl2CH3 191 Haloalkanes and Haloarenes Reprint 2025-26
📋 Question Details
- Chapter
- Biomolecules
- Topic
- Carbohydrates, Specific tests for sugars
- Year
- 2020
- Shift
- 02 Sep Shift 2
- Q Number
- Q45
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 14: Biomolecules
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