no o f chain isomer.
Answers
Answered by
3
CH2.....................
Answered by
2
Unfortunately, there is no formula to calculate the number of structural isomers of an alkane. This is mainly due to the fact that with a certain number of carbons, they can branch out (although most are unstable and do not actually exist).
For example, the formula C4H10 represents both butane and 2-methylpropane (both are stable in similar SCTPs) :

The first ten are:
Number of carbons -> Number of structural isomers
0 -> 1
1 -> 1
2 -> 1
3 -> 1
4 -> 2
5 -> 3
6 -> 5
7 -> 9
8 -> 18
9 -> 35
10 -> 75
The number of structural isomers for alkanes is listed in sequence A000602 of OEIS. They are represented in both linear and logarithmic for in the following graphs:

Similar questions