An example for a double salt is

• potassium ferricyanide

• cobalt hexamine chloride

• cuprous sulphate

• Mohr's salt

452.

Which one of the following platinum complexes is used as anticancer drug?

• [Pt(NH₃)₄]²⁺

• [PtCl₆]^2-

• cis-[PtCl₂(NH₃)₂]

• trans-[PtCl₂(NH₃)₂]

The effective atomic number (EAN) of platinum in potassium hexachloro-platinate(IV) is

• 78

• 74

• 84

• 86

Pick out the complex compound in which the central metal atom obeys EAN rule strictly

• K₄[Fe(CN)₆]

• K₃[Fe(CN)₆]

• [Cr(H₂O)₆]Cl₃

• [Cu(NH₃)₄]SO₄

The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is

• 6

• 8

• 1

• 4

Which one of the following statements is incorrect?

• In K₃[Fe(CN)₆] the ligand has satisfied only the secondary valency of ferric ion

• In  K₃[Fe(CN)₆],the ligand has satisfied both primary and secondary valancies of ferric ion

• In K₃[Fe(CN)₆], the ligand has satisfied both primary and secondary valancies of ferrous ion

• In [Cu(NH₃)₄]SO₄ the ligand has satisfied only the secondary valency of copper

Which compound is zero valent metal complex?

• [Cu(NH₃)₄]SO₄

• [Pt(NH₃)₂Cl₂]

• [Ni(CO)₄]

• K₃[Fe(CN)₆]

The number of unidentate ligands in the complex ion is called

• oxidation number

• primary valency

• coordination number

• EAN

In which of the following complex ion, the central metal ion is in a state of sp³d² hybridisation?

• [CoF₆]^3-

• [Co(NH₃)₆]³⁺

• [Fe(CN)₆]^3-

• [Cr(NH₃)₆]³⁺

Which of the following can participate in linkage isomerism?

• NO${}_2^{-}$

• ${\mathrm{H}}_2\stackrel{··}{\mathrm{N}}{\mathrm{CH}}_2{\mathrm{CH}}_2\stackrel{··}{\mathrm{N}}{\mathrm{H}}_2$

• H₂O

• :NH₃