by Drknow » Thu Jul 10, 2008 4:15 pm
CaC2
The number of bonds between carbon atoms
No. of sigma bonds = 1
No. of Pi bonds = 2
H-C=_C-H acetylene structure
-C=_C-
C2^(2-) - is acetylene from which two protons have been removed
CaC2 + H2O -----> C2H2 (acetylene) + Ca(OH)2
This is used in acetylene preparation.
Note-Sorry for the structures.