Easy tricks to find σ bond


Tricks to find  bond:

Calculation of σ-bonds (S):
Formula number 1 for σ-bonds (S):  J+N-1
  
Where,
S= Total number of sigma bond
J= Total number of hydrogen atoms
N= Total number of carbon atoms
Note: This formula is applicable for simple open chain unsaturated hydrocarbon
Example :  
1. C176H250

S= 250+176-1 = 425

2. C2H4

S= 4+2-1 = 5



Formula number 2:  σ-bonds (S):
S= Number of atoms other than C + (number of C atom -1)
Note: This formula is applicable for simple open chain unsaturated hydrocarbon and their derivatives.
Example:  
1.     C6N4
         S= 4+ (6-1) = 9



Comments

  1. Please give the post to find No of pi bond

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  2. Please tell how can we calculate sigma bond from just condensed formula form???

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