Home › Tamil Nadu SSLC (Class 10) › Chemistry › Carbon and its Compounds › What is the IUPAC name of the alcohol CH₃–CH₂–CH…
What is the IUPAC name of the alcohol CH₃–CH₂–CH₂–OH?
APropanal
BPropan-1-ol
CEthanol
DPropan-2-ol
Answer & Solution
Correct answer: B. Propan-1-ol
1. The chain has three carbons, so the root word is Prop, ruling out Ethanol.
2. The –OH group makes it an alcohol with secondary suffix -ol, ruling out Propanal (an aldehyde).
3. Numbering from the end nearer the –OH puts it on carbon 1, so it is -1-ol, not -2-ol.
4. The terminal 'e' of 'ane' is dropped, giving Prop + an + 1-ol = Propan-1-ol.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 11 "Carbon and its Compounds", p.169_
Related questions
The functional group in acetic acid (CH₃COOH) isWhen ethanol reacts with sodium metal, one of the products isThe compound formed when ethanol undergoes complete combustion isWhich of the following is used for making cutting tools due to its extreme hardness?The two allotropes of carbon found naturally areWhen soap is added to water, the ionic (hydrophilic) end of the soap molecule interacts wiThe IUPAC name of CH₃−CH₂−CH₂−CH₃ isThe presence of a double bond between two carbon atoms makes the compound