Download App

Biomolecules — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules1 Mark
Question
How do you explain the presence of five —OH groups in glucose molecule?
✓

Answer

Glucose gives penta-acetyl derivative on acetylation with acetic anhydride.
$\text{CHO}| (\text{CHOH})_4|\text{CH}_2\text{OH}|\text{CH}_2\text{OH}\xrightarrow{\ \ \ \ \ \ \ \ \ }\text{CHO}|(\text{CHOCOCH}_3)_4|\text{CH}_2\text{OH}_2\text{OCOCH}_3$
This confirms the presence of five -OH groups.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Write equations of the following reactions:

Bromination of anisole in ethanoic acid medium.

→
Write IUPAC names of following and classify them into primary, secondary, tertiary amines:
CH3NHCH(CH3)2
→
How are the following conversions carried out?

Ethyl magnesium chloride → Propan-1-ol.

→
What is the combustion reaction of ethoxy ethane?
→
Write short notes on the following:
Hofmann’s bromamide reaction.
→
Write Electronic configuration of First transition metal : Zn
→
Give reasons for the following:
Thionyl chloride method is preferred for preparing alkyl chlorides from alcohols.
→
Write the equation of the reaction of hydrogen iodide with:

1-propoxypropane.

→
Write the equation to make crotonaldehyde from acetaldehyde.
→
Write the equations for the preparation of 1-iodobutane from:
but-1-ene.
→