JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
What is the spin-only magnetic moment value \((BM)\) of a divalent metal ion with atomic number \(25,\) in it's aqueous solution ?
- A \(5.92\)
- B \(5.0\)
- C \(0\)
- D \(5.26\)
Answer & Solution
Correct Answer
(A) \(5.92\)
Step-by-step Solution
Detailed explanation
Electronic configuration of divalent metal ion having atomic number \(25\) is Total number of unpaired electrons \(=5\) \(\mu\) (Magnetic moment) \(=\sqrt{ n ( n +2)} BM\) where \(n =\) number of unpaired \(e ^{-}\) \(\therefore \mu=\sqrt{5(5+2)}=\sqrt{35} BM =5.92 BM\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The number of given orbitals which have electron density along the axis is \(..........\). \(p _{ x }, p _{ y }, p _{ z }, d _{ xy }, d _{ yz }, d _{ xz }, d _z ^2, d _{ x ^2- y ^2}\)JEE Mains 2023 Medium
-
The correct sequence of reagents for the conversion of X to Y is :JEE Mains 2026 Easy - Volume of \(3 \ \mathrm{M} \ \mathrm{NaOH}\) (formula weight \(40 \mathrm{~g} \mathrm{~mol}^{-1}\) ) which can be prepared from \(84 \mathrm{~g}\) of\(\mathrm{NaOH}\) is_____________ \(\times 10^{-1} \ \mathrm{dm}^3\).JEE Mains 2024 Medium
- \(\mathrm{NO}_2\) required for a reaction is produced by decomposition of \(\mathrm{N}_2 \mathrm{O}_5\) in \(\mathrm{CCl}_4\) as by equation \(2 \mathrm{~N}_2 \mathrm{O}_{5(\mathrm{~g})} \rightarrow 4 \mathrm{NO}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})}\)The initial concentration of \(\mathrm{N}_2 \mathrm{O}_5\) is \(3 \mathrm{~mol} \mathrm{~L}^{-1}\) and it is \(2.75 \mathrm{~mol} \mathrm{~L}^{-1}\) after 30 minutes.The rate of formation of \(\mathrm{NO}_2\) is \(\mathrm{x} \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}\) \(\min ^{-1}\), value of \(x\) is _______.JEE Mains 2024 Hard
- Given below are two statements: Statement \(I\) : The metallic radius of \(\mathrm{Na}\) is \(1.86 \mathrm{~A}^{\circ}\) and the ionic radius of \(\mathrm{Na}^{+}\)is lesser than \(1.86 \mathrm{~A}^{\circ}\). Statement \(II\) : Ions are always smaller in size than the corresponding elements. In the light of the above statements, choose the correct answer from the options given below :JEE Mains 2024 Medium
- Which of the following statements is not correct about rusting of iron?JEE Mains 2024 Hard
More PYQs from JEE Mains
- The correct decreasing order of priority of functional groups in naming an organic compound as per \(IUPAC\) system of nomenclature is.JEE Mains 2022 Easy
- Statement \(-1:\) The line \(x - 2y = 2\) meets the parabola, \(y^2 + 2x = 0\) only at the point \((-2, - 2).\) Statement \(-2:\) The line \(y = mx - \frac{1}{{2m}}(m \ne 0)\) is tangent to the parabola, \(y^2 = - 2x\) at the point \(\left( { - \frac{1}{{2{m^2}}}, - \frac{1}{m}} \right).\)JEE Mains 2013 Hard
- A ball having kinetic energy KE, is projected at an angle of \(60^{\circ}\) from the horizontal. What will be the kinetic energy of ball at the highest point of its flight ?JEE Mains 2025 Easy
- When the switch \(S\), in the circuit shown, is closed, then the value of current \(i\) will be ................. \(A\)
JEE Mains 2019 Medium - An integer is chosen at random from the integers \(\{1,2,3, \ldots \ldots . .50\}\). The probability that the chosen integer is a multiple of atleast one of \(4,6\) and \(7\) isJEE Mains 2024 Medium
- The first three spectral lines of \(H\) -atom in the Balmer series are given \(\lambda_{1}, \lambda_{2}, \lambda_{3}\) considering the Bohr atomic model, the wave lengths of first and third spectral lines \(\left(\frac{\lambda_{1}}{\lambda_{3}}\right)\) are related by a factor of approximately 'x' \(\times 10^{-1}\). The value of \(x\), to the nearest integer, isJEE Mains 2021 Hard