alleryIn an IUPAC name, which part of the name indicates the number of carbon atoms in the parent chain?
ASecondary suffix
BPrefix
CPrimary suffix
DRoot word
Answer & Solution
Correct answer: D. Root word
1. The prefix shows the substituent or branch present.
2. The primary suffix shows the nature of carbon-carbon bonding (ane/ene/yne).
3. The secondary suffix shows the functional group.
4. The root word describes the carbon skeleton and gives the number of carbon atoms, so the answer is root word.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 11 "Carbon and its Compounds", p.167_
Keep practising Unit 4C1: Hydrocarbons and Carbon Compounds
Browse all Unit 4C1: Hydrocarbons and Carbon Compounds questions for Tamil Nadu SSLC (Class 10), or explore more Chemistry topics.
Related questions
Which statement correctly distinguishes a detergent from a soap?When dissolved in water, soap molecules gather together into clusters that trap dirt. WhatIn a soap molecule used for cleaning, which part is hydrophobic and attaches itself to oilSoaps are chemically described as sodium or potassium salts of which type of compound?Which gas is released with brisk effervescence when ethanoic acid reacts with sodium carboPure ethanoic acid freezes into ice-like flakes on cooling. Because of this, it is given aEthanol reacts with ethanoic acid in the presence of concentrated sulphuric acid. What is During the oxidation of ethanol to ethanoic acid by acidified potassium dichromate, what c