Test Index

CBSE Class 12 Chemistry 2023 Delhi Set 2 Solved Paper

© examsnet.com
Question : 2 of 12
Marks: +1, -0
Which of the following ions has the electronic configuration 3d63 d^6 ? (Atomic number; Mn=25M n=25, Co=27,Ni=28\mathrm{Co}=27, \mathrm{Ni}=28 )
Solution:     👈: Video Solution
Co3+\mathrm{Co}^{3+}
Co=\mathrm{Co}= Electronic configuration is [Hr]3d74s2[Hr] 3 d^7 4 s^2
Co3+=3d6\mathrm{Co}^{3+}=3 d^6.
© examsnet.com
Go to Question:
Prev Question
Next Question