Short Answer TypeOn adding NaOH to ammonium sulphate, a colourless gas with pungent odour is evolved, which forms a blue-coloured complex with Cu2+ ion. Identify the gas.
When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write
(i)Structural formula of the complex.
(ii)IUPAC name of the complex.
When a coordination compound CrCl3.6H2O is mixed with AgNO3 it gives tow moles of AgCl, therefore, the structural formula would contain two Cl− ions satisfying the primary valencies, while five H2O molecules and one Cl− ion are present in the coordination sphere, making the coordination number 6. One H2O molecule will be present as the molecule of hydration.
Structural formula: [CrCl(H2O)5]Cl2.H2O
IUPAC name of the compound: Pentaaquachloridochromium(III) chloride
(a) For the complex [Fe(CN)6]3–, write the hybridization type, magnetic character and spin nature of the complex. (At. number : Fe = 26).
(b) Draw one of the geometrical isomers of the complex [Pt(en)2Cl2]2+ which is optically active.
When coordination compound CoCl3.6NH3 is mixed with AgNO3, 3molesof AgCl is precipitated per mole of the compound. write
i) Structural formula of the complex
ii) IUPAC name of the complex
a) For the complex [Fe(H2O)6]3+, write the hybridization,magnetic character and spin of the complex.(At.number: Fe=26).
b) Draw one of the geometrical isomers of the complex [Pt(en)2Cl2]2+ which is optically inactive.
Write the state of hybridization, the shape and the magnetic behaviour of the following complex entities:
(i) [Cr (NH3)4 Cl2] Cl
(ii) [Co (en) 3] Cl3
(iii) K2 [Ni (CN) 4](i) Write the IUPAC name of the complex [Cr(NH3)4Cl2]Cl.
(ii) What type of isomerism is exhibited by the complex [Co(en)3]3+?
(en = ethane-1,2-diamine)
(iii) Why is [NiCl4]2− paramagnetic but [Ni(CO)4] is diamagnetic?
(At. nos. : Cr = 24, Co = 27, Ni = 28)
Why a solution of [Ni(H2O)6]2+ is green while a solution of [Ni(CN)4]2– is colourless? (At. no. of Ni = 28)
Switch
