Coordination Compounds · Ques. 38

The hybridization involved in complex [Ni(CN)4]2- is (At. No. Ni = 28)

1. sp3
2. d2sp2
3. d2sp3
4. dsp2

The name of complex ion, [Fe(CN)6]3- is

1. hexacyanitoferrate (III) ion
2. tricyanoferrate (III) ion
3. hexacyanidoferrate (III) ion
4. hexacyanoiron (III) ion.

The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where en is ethylenediamine) is

1. 6
2. 7
3. 8
4. 9

Number of possible isomers for the complex [Co(en)2Cl2]Cl will be (en = ethylenediamine)

1. 1
2. 3
3. 4
4. 2

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25 ?

1. CoCl3 5NH3
2. CoCl3 6NH3
3. CoCl3 3NH3
4. CoCl3 4NH3

Which of these statements about [Co(CN)6]3- is true?

1. [Co(CN)6]3- has four unpaired electrons and will be in a high-spin configuration.
2. [Co(CN)6]3- has no unpaired electrons and will be in a high-spin configuration.
3. [Co(CN)6]3- has no unpaired electrons and will be in a low-spin configuration.
4. [Co(CN)6]3- has four unpaired electrons and will be in a low-spin configuration.

Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is

1. [Mn(H2O)6]3+
2. [Fe(H2O)6]3+
3. [Co(H2O)6]2+
4. [Co(H2O)6]3+

Which of the following complexes is used as an anticancer agent?

1. mer-[Co(NH3)3Cl3]
2. cis-[PtCl2(NH3)2]
3. cis-K2[PtCl2Br2]
4. Na2CoCl4

A magnetic moment of 1.73 BM will be shown by one among the following

1. TiCl4
2. [CoCl6]4-
3. [Cu(NH3)4]2+
4. [Ni(CN)4]2-

An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be

1. 0.003
2. 0.01
3. 0.001
4. 0.002