Question

the carbon carbon bond in acetylene is called weak bond.why?​

Answer 1

Answer:

due to low sharing bond

Answer 2

Answer:

Why is the carbon-carbon bond in acetylene and ethylene is called weak bond?

A mattress you can fall back on.

They aren’t. The C-C bond distance on ethylene is shorter than that in ethane, and the acetylene bond still shorter. Double bonds stronger than single bonds, triple bonds stronger than double, as you would expect.

Here are the bond energies:

C-C 348 kjoule/mole as in ethane

C=C 602 kjoule/mole as in ethylene

C:::C 835 kjoule/mole as in acetylene

You can discuss the added strength of the 2nd and 3rd bond, if you wish, but the carbon carbon bond in acetylene is quite strong.

Explanation:

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