Question

If C - C (I), C = C(II) and C ≡ C (III) are three bond types, then their bond lengths will be respectively,

• A. I > II > III
• B. I = II = III
• C. I < II < III
• D. Cannot determine

Answer 1

The correct option is A

I > II > III

Generally, if two same covalently bonded atoms are there with single, double and triple bonds, then we can say that for bond lengths that single Bond > Double bond > Triple bond

$Bondorder\propto \frac{1}{Bondlength}$