Question

Which of following bonds does not exist naturally?

• A. $-\stackrel{|}{\underset{|}{C}}-\stackrel{|}{\underset{|}{C}}-$
• B. $-\stackrel{|}{C}=\stackrel{|}{C}-$
• C. $-C\equiv C-$
• D. $C\stackrel{=}{=}C$

Answer 1

Answer: (D)

$C\stackrel{=}{=}C$

Here, the bond represented in option A, B and C exist naturally whereas option D does not exist.

Hence, option D is the required option.