Q45.Which of the following statement is not true for glucose? (1) Glucose exists in two crystalline forms α and β (2) Glucose gives Schiff’s test for aldehyde (3) Glucose reacts with hydroxylamine to form (4) The pentaacetate of glucose does not react with oxime hydroxylamine to give oxime
What This Question Tests
This question tests comprehensive knowledge about the chemical properties and characteristic reactions of glucose, specifically identifying a statement that is incorrect regarding its behavior or structure.
Concepts Tested
📚 NCERT Sections This Tests
8.1 — What Is Meant By The Following Terms ? Give An Example Of The Reaction In
Chemistry Class 12 · Chapter 8
8.1 What is meant by the following terms ? Give an example of the reaction in each case. (i) Cyanohydrin (ii) Acetal (iii) Semicarbazone (iv) Aldol (v) Hemiacetal (vi) Oxime (vii) Ketal (vii) Imine (ix) 2,4-DNP-derivative (x) Schiff’s base
8.5 — Draw Structures Of The Following Derivatives.
Chemistry Class 12 · Chapter 8
8.5 Draw structures of the following derivatives. (i) The 2,4-dinitrophenylhydrazone of benzaldehyde (ii) Cyclopropanone oxime (iii) Acetaldehydedimethylacetal (iv) The semicarbazone of cyclobutanone (v) The ethylene ketal of hexan-3-one (vi) The methyl hemiacetal of formaldehyde 255 Aldehydes, Ketones and Carboxylic Acids Reprint 2025-26
8.18 — Give Plausible Explanation For Each Of The Following:
Chemistry Class 12 · Chapter 8
8.18 Give plausible explanation for each of the following: (i) Cyclohexanone forms cyanohydrin in good yield but 2,2,6-trimethylcyclo- hexanone does not. (ii) There are two –NH2 groups in semicarbazide. However, only one is involved in the formation of semicarbazones. (iii) During the preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, the water or the ester should be removed as soon as it is formed.
📋 Question Details
- Chapter
- Biomolecules
- Topic
- Glucose structure and reactions
- Year
- 2020
- Shift
- 08 Jan Shift 1
- Q Number
- Q45
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 14: Biomolecules
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