Question

Question 4.27 Draw diagrams showing the formation of a double bond and a triple bond between carbon atoms in C2H4 and C2H2 molecules.

Class XI Chemical Bonding and Molecular Structure Page 131

Answer 1

formation of C₂H₄
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(a) formation of sigma bond in ethene.
(b) formation of pi bond in ethene .
(c) now finally formation of C₂H₄ ( ethene) .


formation of C₂H₂
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(a) formation of sigma bond in acetylene
(b) formation of pi bond in acetylene .
(c) now, finally formation of acetylene ( C₂H₂)