Q45.Consider the following reactions : dry HCI x eq. of −−(i) Glucose +ROH → Acetal → acetyl derivative (CH3 CO)2 Ni /H2 y eq. of −−(ii) Glucose → A → acetyl derivative (CH3 CO)2O z eq. of −(iii) Glucose → acetyl derivative ' x' , ' y' and ' z' in these reactions are respectively. (CH3 CO)2O (1) 5, 4 & 6 (2) 4, 6 & 5 (3) 4, 5 & 5 (4) 5, 6 & 5
What This Question Tests
This question tests understanding of the characteristic reactions of glucose, specifically its acetylation in different forms (open chain, cyclic, acetal) and its reduction to sorbitol.
Concepts Tested
📚 NCERT Sections This Tests
7.21 — Name The Reagents Used In The Following Reactions:
Chemistry Class 12 · Chapter 7
7.21 Name the reagents used in the following reactions: (i) Oxidation of a primary alcohol to carboxylic acid. (ii) Oxidation of a primary alcohol to aldehyde. (iii) Bromination of phenol to 2,4,6-tribromophenol. (iv) Benzyl alcohol to benzoic acid. (v) Dehydration of propan-2-ol to propene. (vi) Butan-2-one to butan-2-ol.
7.6 — Give Structures Of The Products You Would Expect When Each Of The
Chemistry Class 12 · Chapter 7
7.6 Give structures of the products you would expect when each of the following alcohol reacts with (a) HCl –ZnCl2 (b) HBr and (c) SOCl2. (i) Butan-1-ol (ii) 2-Methylbutan-2-ol
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
📋 Question Details
- Chapter
- Biomolecules
- Topic
- Reactions of glucose
- Year
- 2020
- Shift
- 02 Sep Shift 1
- Q Number
- Q45
- Type
- Multi concept
- NCERT Ref
- Class 12 Chemistry Ch 14: Biomolecules
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