| ⇦ | 
| ⇨ |
Which one of the following ions has electronic configuration[Ar] 3d⁶? (At. no: Mn=25, Fe=26, Co=27, Ni=28)
Options
(a) Ni³⁺
(b) Mn³⁺
(c) Fe³⁺
(d) Co³⁺
Correct Answer:
Co³⁺
Explanation:
Ni³⁺ (28) = [Ar] 3d⁷
Mn³⁺ (25) = [Ar] 3d⁴
Fe³⁺ (26) = [Ar] 3d⁵
Co³⁺ (27) = [Ar] 3d⁶
Related Questions: - The pH value of 10⁻⁸ M HCl is
- In which of the folowing pair both the species have sp³ hybridization?
- Acetaldehyde can not show
- Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
- In which of the following resonance will be possible
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Structure of Atom
(90)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The pH value of 10⁻⁸ M HCl is
- In which of the folowing pair both the species have sp³ hybridization?
- Acetaldehyde can not show
- Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
- In which of the following resonance will be possible
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Structure of Atom (90)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply