MCQ
Which one of the following complexes will have four isomer
- ✓$[Co(en)(NH_3)_2Cl_2]Cl$
- B$[Co(PPh_3)_2(NH_3)_2Cl_2]Cl$
- C$[Co(en)_3]Cl_3$
- D$[Co(en)_2Cl_2]Br$
✓
Answer
Correct option: A.
$[Co(en)(NH_3)_2Cl_2]Cl$
a
The complex $\left[ Co ( en )\left( NH _3\right)_2 Cl _2\right] Cl$ has four isomers. In one isomer, two ammonia ligands are trans to each other. In the other isomer, the chlorine ligands are trans to each other. In the third isomer the ammonia ligands are cis to each other and chlorine ligands are also cis to each other. This is optically active and exists in $d$ and $l$ forms. Thus, total four isomers are possible.
The complex $\left[ Co ( en )\left( NH _3\right)_2 Cl _2\right] Cl$ has four isomers. In one isomer, two ammonia ligands are trans to each other. In the other isomer, the chlorine ligands are trans to each other. In the third isomer the ammonia ligands are cis to each other and chlorine ligands are also cis to each other. This is optically active and exists in $d$ and $l$ forms. Thus, total four isomers are possible.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How many number of optically active isomers are possible for $2,3-$ dibromo butane $1,4-$ dioic acid ?
→Give the correct order of initials $T$ or $F$ for following statements. Use $T$ if statement is true and $F$ if it is false.
→$(I)$ Number of $S-S$ bonds in $H_2S_nO_6$ are $(n + 1)$
$(II)$ When $F_2$ reacts with water gives $HF, O_2$ and $O_3$
$(III)$ $LiNO_3$ and $BaCl_2$ compounds are used in fire works
$(IV)$ $Be$ and $Mg$ hydrides are ionic and polymeric
Among the following complexes the one which shows Zero crystal field stabilization energy $(CFSE)$ is
→A $5.25\%$ solution of a substance is isotonic with a $1.5\%$ solution of urea (molar mass $= 60\, g\, mol^{-1}$) in the same solvent. If the densities of both the solutions are assumed to be equal to $1.0\,g\, cm^{-3},$ molar mass of the substance will be .............. $\mathrm{g\,mol}^{-1}$
→The structural formula of cocaine is shown below. How many stereogenic carbon atoms are there in this molecule ?
Write the order of basic strength
If $Ag^+ + NH_3 \rightleftharpoons [Ag(NH_3)]^+$ ;
→$K_1 = 1.6 \times 10^3$ and
$[Ag(NH_3)]^+ + NH_3 \rightleftharpoons [Ag(NH_3)_2]^+$ ;
$K_2 = 6.8 \times 10^3$ .
Then formation constant of $[Ag(NH_3)_2]^+$ is :
Which of these represents the incorrect order of the mentioned property ?
For a gaseous reaction $Cl_2(g) + PCl_3(g) \to PCl_5(g)$ If $10\, mL$ of $Cl_2$ completely react with $PCl_3$ then find out produced volume of $PCl_5$. .............. $\mathrm{mL}$
→In the reaction given below, the major product formed is
