Question

Which type of overlap is involved in formation of C-H bond in ethene molecule?

• A. sp\(^2\) - p
• B. sp - s
• C. sp\(^3\) - s
• D. sp\(^2\) - s

Hint:

In ethene, the C-H bond is formed by the sp\(^2\) hybridized orbital of carbon and the p orbital of hydrogen.

Answer 1

The Correct Option is A

Step 1: Understanding the bond formation.
In ethene (C\(_2\)H\(_4\)), the carbon atoms are sp\(^2\) hybridized and form sigma bonds with hydrogen atoms. The overlap that occurs between the sp\(^2\) hybrid orbital of carbon and the p orbital of hydrogen results in the C-H bond. This is the sp\(^2\) - p overlap.
Step 2: Analyzing the options.
(A) sp\(^2\) - p: Correct. This is the correct overlap in ethene for the formation of the C-H bond.
(B) sp - s: Incorrect. This overlap occurs in other bonding situations but not in ethene.
(C) sp\(^3\) - s: Incorrect. This is not the correct overlap for the C-H bond in ethene.
(D) sp\(^2\) - s: Incorrect. This overlap does not occur in the C-H bond in ethene.
Step 3: Conclusion.
The correct answer is (A) sp\(^2\) - p, as this is the overlap involved in the formation of the C-H bond in ethene.