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Question

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

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

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 π-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.

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