JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Which molecule/ion among the following cannot act as a ligand in complex compounds ?
- A \(CH_4\)
- B \(CO\)
- C \(CN^-\)
- D \(Br^-\)
Answer & Solution
Correct Answer
(A) \(CH_4\)
Step-by-step Solution
Detailed explanation
The donor atoms, molecules or anions which donate a pair of electrons to the metal atom or ion and form a coordinate bond with it are called ligands. In methane there is no electrons for donation to central metal atom/ ion it is stable with complete octet configuration.
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
- Identify the product \(A\) and product \(B\) in the following set of reactions.
JEE Mains 2024 Medium - Assuming \(1\,\mu\,g\) of trace radioactive element \(X\) with a half life of \(30\) years is absorbed by a growing tree. The amount of \(X\) remaining in the tree after \(100\) years is \(\times 10^{-1}\,\mu\,g\) \([ Given : \ln 10=2.303 ; \log 2=0.30]\)JEE Mains 2022 Medium
- The pair of lanthanides in which both elements have high third-ionization energy is:JEE Mains 2023 Medium
- Given below are two statements: Statement \(I :\) Bohr's theory accounts for the stability and line spectrum of \(Li ^{+}\) ion. Statement \(II :\) Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field. In the light of the above statements, choose the most appropriate answer from the options given below:JEE Mains 2021 Medium
- The correct increasing order of spin-only magnetic moment values of the complex ions
\([MnBr_{4}]^{2-}\) (A), \([Cu(H_{2}O)_{6}]^{2+}\) (B), \([Ni(CN)_{4}]^{2-}\) (C) and \([Ni(H_{2}O)_{6}]^{2+}\) (D) is:JEE Mains 2026 Medium - Assume a cell with the following reaction \(\mathrm{Cu}_{(\mathrm{s})}+2 \mathrm{Ag}^{+}\left(1 \times 10^{-3} \,\mathrm{M}\right) \rightarrow \mathrm{Cu}^{2+}(0.250\, \mathrm{M})+2 \mathrm{Ag}_{(\mathrm{s})}\) \(\mathrm{E}_{\mathrm{Cell}}^{\ominus}=2.97\, \mathrm{~V}\) \(\mathrm{E}_{\text {cell }}\) for the above reaction is \(....\,V.\) (Nearest integer) [Given : \(\log 2.5=0.3979, T=298\, \mathrm{~K}]\)JEE Mains 2021 Hard
More PYQs from JEE Mains
- In the line \( \alpha x+4y=\sqrt{7} \), where \( \alpha\in R \) touches the ellipse \( 3x^{2}+4y^{2}=1 \) at the point P in the first quadrant, then one of the focal distances of P is :JEE Mains 2026 Hard
- The circuit shown in the figure consists of a charged capacitor of capacity \(3\, \mu F\) and a charge of \(30\, \mu C\). At time \(t =0,\) when the key is closed, the value of current flowing through the \(5\, M \Omega\) resistor is \('x'\) \(\mu-A\). The value of \('x'\) to the nearest integer is .........
JEE Mains 2021 Medium - For any real number \(x\), let \([ x ]\) denote the largest integer less than equal to \(x\). Let \(f\) be a real valued function defined on the interval \([-10,10]\) by \(f(x)=\left\{\begin{array}{cl}x-[x], & \text { if }(x) \text { is odd } \\ 1+[x]-x & \text { if }(x) \text { is even }\end{array}\right.\) Then the value of \(\frac{\pi^{2}}{10} \int_{-10}^{10} f(x) \cos \pi x d x\) is.JEE Mains 2022 Hard
- A gun fires a lead bullet of temperature 300 K into a wooden block. The bullet having melting temperature of 600 K penetrates into the block and melts down. If the total heat required for the process is 625 J , then the mass of the bullet is __________ grams.
(Latent heat of fusion of lead \(=2.5 \times 10^4 \mathrm{JKg}^{-1}\) and specific heat capacity of lead \(=125 \mathrm{JKg}^{-1}\) \(\left.\mathrm{K}^{-1}\right)\)JEE Mains 2025 Medium - Fortification of food with iron is done using \(\mathrm{FeSO}_4 \cdot 7 \mathrm{H}_2 \mathrm{O}\). The mass in grams of the \(\mathrm{FeSO}_4 \cdot 7 \mathrm{H}_2 \mathrm{O}\) required to achieve 12 ppm of iron in 150 kg of wheat is _______. (Nearest integer)
[Given : Molar mass of \(\mathrm{Fe}, \mathrm{S}\) and O respectively are 56,32 and \(16 \mathrm{~g} \mathrm{~mol}^{-1}\) ]JEE Mains 2025 Medium - All resistances in figure are \(1\,\Omega\) each. The value of current ' \(I\) ' is \(\frac{a}{5}\,A\). The value of \(a\) is
JEE Mains 2022 Hard