Class 12 Exam  >  Class 12 Questions  >  Which of the following complex compounds will... Start Learning for Free
Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)
  • a)
    [Ti (NH3)6]3+
  • b)
    [Cr (NH3)6]3+
  • c)
    [Co (NH3)6]3+
  • d)
    [Zn (NH3)6]2+
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which of the following complex compounds will exhibit highest paramagn...
(a) [Ti(NH3)6]3+ : 3d1 configuration and thus has one unpaired electron. (b) [Cr(NH3)6]3+ : In this complex Cr is in +3 oxidation state.
Thus, the complex is paramagnetic.
(c) [Co(NH3)6]3+ : In this complex are cobalt ion is in + 3 oxidation state with 3d6 configuration.
Co3+,[Ar]3d6
(inner orbital or d2sp3 hybrid orbital low spin complex) diamagnetic
(d) In this complex Zn exists as
Zn++ ion
Zn++ ion : 3d10 4s0
Due to presence of paired electrons complex is diamagnetic in nature.
View all questions of this test
Most Upvoted Answer
Which of the following complex compounds will exhibit highest paramagn...
Solution:

In order to determine which complex compound exhibits the highest paramagnetic behavior, we need to analyze the electronic configuration of each central metal ion. Paramagnetic behavior is a result of the presence of unpaired electrons in the d-orbitals of the metal ion.

- [Ti(NH3)6]3+:
The atomic number of Ti is 22. The electronic configuration of Ti is [Ar] 3d2 4s2. In the complex, Ti is in the +3 oxidation state, which means it has lost 3 electrons. Therefore, the electronic configuration of [Ti(NH3)6]3+ is [Ar] 3d0 4s0. Since there are no unpaired electrons, this complex is diamagnetic.

- [Cr(NH3)6]3+:
The atomic number of Cr is 24. The electronic configuration of Cr is [Ar] 3d5 4s1. In the complex, Cr is in the +3 oxidation state, which means it has lost 3 electrons. Therefore, the electronic configuration of [Cr(NH3)6]3+ is [Ar] 3d3 4s0. There are three unpaired electrons in the d-orbitals of Cr, making this complex paramagnetic.

- [Co(NH3)6]3+:
The atomic number of Co is 27. The electronic configuration of Co is [Ar] 3d7 4s2. In the complex, Co is in the +3 oxidation state, which means it has lost 3 electrons. Therefore, the electronic configuration of [Co(NH3)6]3+ is [Ar] 3d4 4s0. There are four unpaired electrons in the d-orbitals of Co, making this complex more paramagnetic than [Cr(NH3)6]3+.

- [Zn(NH3)6]2+:
The atomic number of Zn is 30. The electronic configuration of Zn is [Ar] 3d10 4s2. In the complex, Zn is in the +2 oxidation state, which means it has lost 2 electrons. Therefore, the electronic configuration of [Zn(NH3)6]2+ is [Ar] 3d10 4s0. Since there are no unpaired electrons, this complex is diamagnetic.

Conclusion:
Among the given complex compounds, [Cr(NH3)6]3+ exhibits the highest paramagnetic behavior due to the presence of three unpaired electrons in the d-orbitals of the central Cr ion.
Explore Courses for Class 12 exam
Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer?
Question Description
Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer?.
Solutions for Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Which of the following complex compounds will exhibit highest paramagnetic behaviour? [2011M] (At. No. : Ti = 22, Cr = 24, Co = 27, Zn = 30)a)[Ti (NH3)6]3+b)[Cr (NH3)6]3+c)[Co (NH3)6]3+d)[Zn (NH3)6]2+Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev