JEE Main On 8 April 2017 Question 5
Question: Which of the following is paramagnetic? [JEE Online 08-04-2017]
Options:
A) CO
B) $ N{O^{+}} $
C) $ O_2^{2-} $
D) $ B _2 $
Show Answer
Answer:
Correct Answer: D
Solution:
- No of e- CO = 14, $ N{O^{+}}=14 $ $ O_2^{2-}=18 $ $ B_2^{{}}=10 $ According to MOT $ B _2 $ is paramagnetic
