Multiple choice

Which of the following complex (es) has (have) two unpaired electrons? A. (pi-C5H5)2Ni B. (pi-C5H5)2V C. (pi-C5H5)2Cr

  1. Only A

  2. Only B

  3. Only C

  4. A and B

  5. A and C

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

(pi-C5H5)2Ni and (pi-C5H5)2V both have paramagnetic nature with 2 unpaired electrons respectively.(pi-C5H5)2Cr has two unpaired electrons and has paramagnetic nature. Hence, these are identical in the number of unpaired electrons.