How to find hybridisation, Chemistry

how to find hybridisation?i want shortcut or any trick

Posted Date: 3/29/2013 6:31:28 AM | Location : United States





Following is the way to find hybridisation

 

1st step    :  count the no. of valence electrons[ V ]

2nd step   :   now divide V by 8 ,if V >8

                    or

                    divide V by 2 ,if  V <=8                                   -[1]

                    if the remainder is still  not zero then

                   again divide it by 2,                                         - [2]

                   therefore the final value = quotient in 1+ quotient in 2 

                  as    shown in the example

3rd step    :  compare the above obtained value with the table given below :-

                   sp          -   2

                   sp2        -   3

                   sp3        -   4

                   sp3d      -   5 

                   sp3d2    -   6

                   sp3d3    -   7

ex:- for  c2h6

step  1   -   2[4 ] + 6[1] = 4+6=10

step  2    -   as 14>8  

                   14/8, quotient=1  as remainder  = 6 which is not equal to zero

                    therefore 6 / 2   quotient=3 

                  therefore final value=1+3=4

                   comparing with the table given above 

                   the hybridisation is sp3.

note -  this is not applicable  to all compounds

 

Posted by Mika | Posted Date: 3/29/2013 6:32:08 AM


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