Chapter 3-5 Student Chemistry Worksheet - Class X, Central Board Of Secondary Education Page 11
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30Formative Assessment Manual for Teachers
Carbon and its Compounds - Chapter 4
Naming of a carbon compound can be done using the following steps. Identify the longest chain
in the compound carrying functional group and count the number of carbon atoms in that. The
number of carbon atoms in the longest chain form the root word.
Nunber of carbons
Word Root
1
meth
2
eth
3
prop
4
but
5
pent
6
hex
7
hept
8
oct
9
non
10
dec
Prefixes and suffixes may be added to the root word according to their presence in the compound
as follows (the following rules suffice the class X syllabus of CBSE and are in accordance with
NCERT class X science book)-
Prefix + Root word + primary suffix + secondary suffix
Primary suffixes
Identification group
Class of compound
Suffix
Single bonds
Alkane
ane
Double bond
Alkene
ene
Triple bond
Alkyne
yne
Prefixes
Structure of
Class of
Prefix
functional qroup
compound
CI, Br
halides
– Chloro,
– bromo
41
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