JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Indicate the complex/complex ion which did not show any geometrical isomerism :
- A \(\left[\mathrm{CoCl}_{2}(\mathrm{en})_{2}\right]\)
- B \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{3-}\)
- C \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]\)
- D \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
Answer & Solution
Correct Answer
(B) \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{3-}\)
Step-by-step Solution
Detailed explanation
(1) \(\left[\mathrm{CoCl}_{2}(\mathrm{en})_{2}\right]\) show Cis-trans isomerism (2) \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{-3}\) can't Show \(G.I.\) (3) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]\) Show fac…
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 fragrance of flowers is due to the presence of some steam volatile organic compounds called essential oils. These are generally insoluble in water at room temperature but are miscible with water vapour in vapour phase. \(A\) suitable method for the extraction of these oils from the flowers is _______.JEE Mains 2024 Hard
- Sea water, which can be considered as a 6 molar \((6 \mathrm{M})\) solution of NaCl , has a density of \(2 \mathrm{~g} \mathrm{~mL}^{-1}\). The concentration of dissolved oxygen \(\left(\mathrm{O}_2\right)\) in sea water is 5.8 ppm. Then the concentration of dissolved oxygen \(\left(\mathrm{O}_2\right)\) in sea water, is \(\mathrm{x} \times 10^{-4} \mathrm{~m}\). \(\mathrm{x}=\) _______. (Nearest integer)
Given: Molar mass of NaCl is \(58.5 \mathrm{~g} \mathrm{~mol}^{-1}\) Molar mass of \(\mathrm{O}_2\) is \(32 \mathrm{~g} \mathrm{~mol}^{-1}\)JEE Mains 2025 Medium - For micelle formation, which of the following statements are correct? \((A)\) Micelle formation is an exothermic process. \((B)\) Micelle formation is an endothermic process. \((C)\) The entropy change is positive. \((D)\) The entropy change is negative.JEE Mains 2022 Medium
- \(A ( g ) \rightarrow 2 B ( g )+ C ( g )\) is a first order reaction. The initial pressure of the system was found to be \(800\,mm\,Hg\) which increased to \(1600\,mm\,Hg\) after \(10\,min\). The total pressure of the system after \(30\,min\) will be \(.........\,mm\,Hg\). (Nearest integer)JEE Mains 2023 Medium
- Given below are two statements :
Statement I: \(\mathrm{H}_2 \mathrm{Se}\) is more acidic than \(\mathrm{H}_2 \mathrm{Te}\).
Statement II : \(\mathrm{H}_2 \mathrm{Se}\) has higher bond enthalpy for dissociation than \(\mathrm{H}_2 \mathrm{Te}\).
In the light of the above statements, choose the correct answer from the options given below.JEE Mains 2025 Easy - The reaction \(2 A + B _{2} \rightarrow 2 AB\) is an elementary reaction. For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of \(3,\) the rate of the reaction increases by a factor of \(.....\). (Round off to the Nearest Integer).JEE Mains 2021 Easy
More PYQs from JEE Mains
- Choose the incorrect trend in the atomic radius \((\mathrm{r})\) of the elements :JEE Mains 2025 Easy
- The product \((C)\) in thbelow mentioned reaction is _______. \({CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow[\Delta]{\mathrm{KOH}_{(a k)}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\mathrm{KOH}_{(a) i}]{\Delta} \mathrm{C}\)JEE Mains 2024 Hard
- The motion of a mass on a spring, with spring constant \({K}\) is as shown in figure. The equation of motion is given by \(x(t)= A sin \omega t+ Bcos\omega t\) with \(\omega=\sqrt{\frac{K}{m}}\) Suppose that at time \(t=0\), the position of mass is \(x(0)\) and velocity \(v(0)\), then its displacement can also be represented as \(x(t)=C \cos (\omega t-\phi)\), where \(C\) and \(\phi\) are
JEE Mains 2021 Hard - In an experiment to determine the Young's modulus, steel wires of five different lengths \((1,2,3,4\) and \(5\,m )\) but of same cross section \(\left(2\,mm ^{2}\right)\) were taken and curves between extension and load were obtained. The slope (extension/load) of the curves were plotted with the wire length and the following graph is obtained. If the Young's modulus of given steel wires is \(x \times 10^{11}\,Nm ^{-2}\), then the value of \(x\) is
JEE Mains 2022 Hard - If the mean deviation about median for the number \(3,5,7,2\,k , 12,16,21,24\) arranged in the ascending order, is \(6\) then the median isJEE Mains 2022 Medium
- For some \(\theta \in\left(0, \frac{\pi}{2}\right),\) if the eccentricity of the hyperbola, \(x^{2}-y^{2} \sec ^{2} \theta=10\) is \(\sqrt{5}\) times the eccentricity of the ellipse, \(x^{2} \sec ^{2} \theta+y^{2}=5,\) then the length of the latus rectum of the ellipse isJEE Mains 2020 Hard