question_answer

Which of the following molecules has two sigma \[(\sigma )\] and two pi\[(\pi )\] bonds?

A) \[{{C}_{2}}{{H}_{4}}\]                      

B) \[{{N}_{2}}{{F}_{2}}\]

C) \[{{C}_{2}}{{H}_{2}}C{{l}_{2}}\]                 

D) \[HCN\]

Correct Answer: D

Solution :

[d] i.e \[2\pi \]and 2 \[\sigma \] bonds.