Some Basic Principles Of Organic Chemistry Question 10
Question: Number of $ \pi $ electrons in cyclobutadienyl anion $ {{(C_4H_4)}^{-2}} $ is [IIT-JEE 1991]
Options:
A) 2
B) 4
C) 6
D) 8
Show Answer
Answer:
Correct Answer: D
Solution:
Cyclobutadienyl anion $ {{(C_4H_4)}^{2-}} $