[EDTA]^4- is a 

• monodentate ligand

• bidentate ligand

• quadridentate ligand

• hexadentate ligand

152.

According to crystal field theory, the M-L bond in a complex is

• partially covalent

• purely ionic

• purely covalent

• purely coordinate

Copper sulphate solution, when added to an excess of ammonium hydroxide, forms a complex compound due to :

• [Cu(NH₃)₂]²⁺

• [Cu(NH₃)₄]²⁺

• [Cu(NH₃)₆]²⁺

• Cu²⁺

Mohr salt is made up of which combination of salt?

• Ammonium sulphate and potash

• Ammonium sulphate and ferrous sulphate

• Ammonium sulphate and copper sulphate

• Ammonium sulphate and magnesium sulphate

The coordination number and the oxidation state of the element 'M' in the complex [M(en)₂(C₂O₄)] NO₂ {where (en) is ethan 1, 2-diamine} are respectively

• 6 and 3

• 4 and 3

• 6 and 2

• 4 and 2

In CsCl type structure the co-ordination of Cs⁺ and Cl^- are:

• 6, 6

• 6, 8

• 8, 8

• 8, 6

The IUPAC name of K₂[PtCl₆] is:

• hexachloroplatinate potassium

• potassium hexachloroplatinate (IV)

• potassium hexachloroplatinate

• potassium hexachloroplatinum (IV)

Calomel (Hg₂Cl₂) on reaction with ammonium hydroxide gives

• HgO

• Hg₂O

• NH₂-Hg-Hg-Cl

• HgNH₂Cl

The isomersim exhibited by following compounds [Co(NH₃)₆][Cr(CN)₆] and [Cr(NH₃)₆(CN)₆] is

• ionisation isomerism

• polymerisation isomersion

• Linkage isomersim

• Cooridination isomerism

The increasing order of field strenght of ligands is

• NH₃< H₂O< Cl^-< CO< CN^-

• Cl^-< H₂O< NH₃ < CN^-< CO

• Cl^-< CO< CN^-< H₂O < NH₃

• CN^-< CO< NH₃< Cl^- < H₂O