Question

how to find the root word in chemisry

Answer 1

Word Root
 
            The word root represents the number of carbon atoms in the parent chain. For the chains upto four carbon atoms special word roots are used whereas for the chains containing more than four carbon atoms, Greek numerals (Table 1) are used. The word roots for different carbon chains are derived by leaving ‘ane’ from the name of carbon chain of respective molecule.
 
 Some unbranched Chains and their Names
Name
Number of Carbon Atoms
Structure
Methane
1
CH4
Ethane
2
CH3CH3
Propane
3
CH3CH2CH3
Butane
4
CH3(CH2)2CH3
Pentane
5
CH3(CH2)3CH3
Hexane
6
CH3(CH2)4CH3
Heptane
7
CH3(CH2)5CH3
Octane
8
CH3(CH2)6CH3
Nonane
9
CH3(CH2)7CH3
Decane
10
CH3(CH2)8CH3
Undecane
11
CH3(CH2)9CH3
Dodecane
12
CH3(CH2)10CH3
Tridecane
13
CH3(CH2)11CH3
Tetradecane
14
CH3(CH2)12CH3
Pentadecane
15
CH3(CH2)13CH3
Hexadecane
16
CH3(CH2)14CH3
Heptadecane
17
CH3(CH2)15CH3
Octadecane
18
CH3(CH2)16CH3
Nonadecane
19
CH3(CH2)17CH3
Eicosane
20
CH3(CH2)18CH3
Heneicosane
21
CH3(CH2)19CH3
Docosane
22
CH3(CH2)20CH3
Tricosane
23
CH3(CH2)21CH3
Triacontane
30
CH3(CH2)28CH3
Hentriacontane
31
CH3(CH2)29CH3
Tetracontane
40
CH3(CH2)38CH3
Pentacontane
50
CH3(CH2)48CH3
Hexacontane
60
CH3(CH2)58CH3
Heptacontane
70
CH3(CH2)68CH3
Octacontane
80
CH3(CH2)78CH3
Nonacontane
90
CH3(CH2)88CH3
Hectane
100
CH3(CH2)98CH3
 
            The word root of one carbon chain is obtained by leaving ane from methane i.e., meth–and similarly for others e.g.
 
                                    C1      Methane                    Meth-
                                    C2      Ethane                       Eth-

Answer 2

he word root represents the number of carbon atoms in the parent chain. For the chains upto four carbon atoms special word roots are used whereas for the chains containing more than four carbon atoms, Greek numerals (Table 1) are used. The word roots for different carbon chains are derived by leaving ‘ane’ from the name of carbon chain of respective molecule.

 

 Some unbranched Chains and their Names

Name

Number of Carbon Atoms

Structure

Methane

1

CH4

Ethane

2

CH3CH3

Propane

3

CH3CH2CH3

Butane

4

CH3(CH2)2CH3

Pentane

5

CH3(CH2)3CH3

Hexane

6

CH3(CH2)4CH3

Heptane

7

CH3(CH2)5CH3

Octane

8

CH3(CH2)6CH3

Nonane

9

CH3(CH2)7CH3

Decane

10

CH3(CH2)8CH3

Undecane

11

CH3(CH2)9CH3

Dodecane

12

CH3(CH2)10CH3

Tridecane

13

CH3(CH2)11CH3

Tetradecane

14

CH3(CH2)12CH3

Pentadecane

15

CH3(CH2)13CH3

Hexadecane

16

CH3(CH2)14CH3

Heptadecane

17

CH3(CH2)15CH3

Octadecane

18

CH3(CH2)16CH3

Nonadecane

19

CH3(CH2)17CH3

Eicosane

20

CH3(CH2)18CH3

Heneicosane

21

CH3(CH2)19CH3

Docosane

22

CH3(CH2)20CH3

Tricosane

23

CH3(CH2)21CH3

Triacontane

30

CH3(CH2)28CH3

Hentriacontane

31

CH3(CH2)29CH3

Tetracontane

40

CH3(CH2)38CH3

Pentacontane

50

CH3(CH2)48CH3

Hexacontane

60

CH3(CH2)58CH3

Heptacontane

70

CH3(CH2)68CH3

Octacontane

80

CH3(CH2)78CH3

Nonacontane

90

CH3(CH2)88CH3

Hectane

100

CH3(CH2)98CH3

 

           The word root of one carbon chain is obtained by leaving ane from methane i.e., meth–and similarly for others e.g.

 

                                   C1      Methane                    Meth-

                                   C2      Ethane                       Eth-

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