JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Which of the following complex species is not expected to exhibit optical isomerism? (\(en=\) ethylenediamine)
- A \([Co(en)_3]^{3+}\)
- B \([Co(en)_2Cl_2]^{+}\)
- C \([Co(NH_3)_3Cl_3]\)
- D \([Co(en) (NH_3)_2 Cl_2]^+\)
Answer & Solution
Correct Answer
(C) \([Co(NH_3)_3Cl_3]\)
Step-by-step Solution
Detailed explanation
Optical isomerism is exhibited by only those complexes which lacks elements of symmetry. \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) shows facial as well as meridional isomerism. But both the forms contain plane of symmetry. Thus, this complex…
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
- For a certain reaction consider the plot of \(lnk\) versus \(1/T\) given in the figure. If the rate constant of this reaction at \(400\,K\) is \(10^{-5}\,s^{-1},\) then the rate constant at \(500\,K\) is
JEE Mains 2019 Hard - The \(pH\) of ammonium phosphate solution, if \(pK _{ a }\) of phosphoric acid and \(pk _{ b }\) of ammonium hydroxide are \(5.23\) and \(4.75\) respectively, is ..... .JEE Mains 2021 Medium
- For the reaction \(\mathrm{A}(l) \rightarrow 2 \mathrm{B}(\mathrm{g})\) \(\Delta \mathrm{U}=2.1\; \mathrm{kcal}, \Delta \mathrm{S}=20\; \mathrm{cal} \mathrm{K}^{-1}\) at \(300\; \mathrm{K}\) Hence \(\Delta \mathrm{G}\) in \(\mathrm{kcal}\) isJEE Mains 2020 Hard
- The correct match between Item \(I\) and Item \(II\) is
Item \(I\) Item \(II\) \(A\) Ester test \(P\) Tyr \(B\) Carbylamine test \(Q\) Asp \(C\) Phthalein dye test \(R\) Ser \(S\) Lys JEE Mains 2019 Hard - In basic medium \(CrO _{4}^{2-}\) oxidises \(S _{2} O _{3}^{2-}\) to form \(SO _{4}^{2-}\) and itself changes into \(Cr ( OH )_{4}^{-}\). The volume of \(0.154\, M CrO _{4}^{2-}\) required to react with \(40\, mL\) of \(0.25\, M S _{2} O _{3}^{2-}\) is ........... \(mL\) (Rounded-off to the nearest integer)JEE Mains 2021 Easy
- The major product of the following reaction is \(\,\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_2} - CH - C{H_2} - C{H_3}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
{\,\,\,\,\,\,\,\,\,Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\) \(\xrightarrow[{heat}]{{KOH,\,C{H_3}OH}}\)JEE Mains 2017 Hard
More PYQs from JEE Mains
- Let the equation of the circle, which touches \(x\)-axis at the point \((a, 0), a\gt0\) and cuts off an intercept of length \(b\) on \(y\)-axis be \(x^2+y^2-\alpha x+\beta y+\gamma=0\). If the circle lies below \(x\)-axis, then the ordered pair \(\left(2 a, b^2\right)\) is equal toJEE Mains 2025 Medium
- In an oligopeptide named Alanylglycylphenyl alanyl isoleucine, the number of \(sp ^2\) hybridised carbons is \(...........\).JEE Mains 2023 Hard
- If the shortest distance between the lines \(\frac{x+2}{2}=\frac{y+3}{3}=\frac{z-5}{4}\) and \(\frac{x-3}{1}=\frac{y-2}{-3}=\frac{z+4}{2}\) is \(\frac{38}{3 \sqrt{5}} \mathrm{k}\) and \(\int_0^{\mathrm{k}}\left[\mathrm{x}^2\right] \mathrm{dx}=\alpha-\sqrt{\alpha}\), where \([\mathrm{x}]\) denotes the greatest integer function, then \(6 \alpha^3\) is equal to ...........JEE Mains 2024 Hard
- On a linear temperature scale \(Y\), water freezes at \(- 160^o\, Y\) and boils at \(- 50^o\, Y\). On this \(Y\) scale , a temperature of \(340\, K\) would be read as........ \(^oY\) ( water freezes at \(273\, K\) and boils at \(373\, K\))JEE Mains 2013 Medium
- Work done by a Carnot engine operating between temperatures \(127^{\circ}\,C\) and \(27^{\circ}\,C\) is \(2\,kJ\). The amount of heat transferred to the engine by the reservoir is \(........\,kJ\)JEE Mains 2023 Medium
- If the equation of the plane passing through the line of intersection of the planes \(2 x-7 y+4 z-3=0,3 x-5 y+4 z+11=0\) and the point \((-2,1,3)\) is \(a x+b y+c z-7=0,\) then the value of \(2 a+b+c-7\) isJEE Mains 2021 Hard