Question:
The number of unpaired electrons in \([CoF_6]^{3-}\) is:
The number of unpaired electrons in \([CoF_6]^{3-}\) is:
Show Hint
Weak field ligands do not cause electron pairing, leading to a higher number of unpaired electrons in the d-orbital.
Updated On: Mar 10, 2025
- one
- four
- zero
- two
- three
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
In \([CoF_6]^{3-}\), cobalt is in the +3 oxidation state, which corresponds to a \(3d^6\) electron configuration. Since fluoride is a weak field ligand, it does not induce strong electron pairing. The electrons remain unpaired, leading to a total of four unpaired electrons.
Was this answer helpful?
0
0
Top Questions on position of hydrogen in the periodic table
- Which lanthanide element has half-filled 4f orbitals in its +3 state?
- KEAM - 2024
- Chemistry
- position of hydrogen in the periodic table
- A tertiary alkyl halide (X), C\(_4\)H\(_9\)Br, reacted with alc.KOH to give compound (Y). Compound (Y) reacted with HBr in presence of peroxide to give compound (Z). The compounds (Y) and (Z) are respectively:
- KEAM - 2024
- Chemistry
- position of hydrogen in the periodic table
- Which of the following is used in the treatment of lead poisoning?
- KEAM - 2024
- Chemistry
- position of hydrogen in the periodic table
- The increasing order of field strength of ligands in the spectrochemical series is:
- KEAM - 2024
- Chemistry
- position of hydrogen in the periodic table
- The type of d-d transition of the electron occurs in \([Ti(H_2O)_6]^{3+}\) is:
- KEAM - 2024
- Chemistry
- position of hydrogen in the periodic table
View More Questions
Questions Asked in KEAM exam
- In the measurement of length 6 $\mu$m is equal to $x$ pm. Then the value of $x$ is
- KEAM - 2024
- Dimensional Analysis
- If the lines \( \frac{x-1}{2} = \frac{y-2}{\alpha} = \frac{z-3}{2} \) and \( \frac{x-1}{2} = \frac{y-2}{1} = \frac{z-3}{-2} \) are perpendicular, then the value of \( \alpha \) is:
- KEAM - 2024
- Integration
- An organic compound contains 37.5% C, 12.5% H and the rest oxygen. What is the empirical formula of the compound?
- KEAM - 2024
- Oxygen
- Let A, B, C denote the set of students in a college who play football, basketball, and cricket respectively. If \( n(A) = 60 \), \( n(B) = 55 \), \( n(C) = 70 \), \( n(A \cup B \cup C) = 100 \) and \( n(A \cap B \cap C) = 20 \), then the number of students who play exactly two of these sports is
- KEAM - 2024
- Relations and functions
For the reaction:
\[ 2A + B \rightarrow 2C + D \]
The following kinetic data were obtained for three different experiments performed at the same temperature:
\[ \begin{array}{|c|c|c|c|} \hline \text{Experiment} & [A]_0 \, (\text{M}) & [B]_0 \, (\text{M}) & \text{Initial rate} \, (\text{M/s}) \\ \hline I & 0.10 & 0.10 & 0.10 \\ II & 0.20 & 0.10 & 0.40 \\ III & 0.20 & 0.20 & 0.40 \\ \hline \end{array} \]
The total order and order in [B] for the reaction are respectively:
- KEAM - 2024
- Grignard’s reagents and their uses
View More Questions