Question

Assertion: Equal number of sigma and pi bonds are present in ethyne.
Reason: $\pi$-bond is stronger than sigma bond.

• A. The assertion and the reason are true and the reason is the correct explanation of the assertion
• B. The assertion and the reason are true but the reason is not the correct explanation of the assertion
• C. The assertion is true but the reason is false
• D. Both the assertion and the reason are false

Answer 1

The correct option is D Both the assertion and the reason are false

In the case of ethyne we have a total of three sigma and two $\pi$-bonds. Hence, the assertion becomes false. Also, the sigma bond is always stronger than the pi bond due to greater extent of overlapping. So, the reason is also incorrect.