Coordination Compounds

Which complex compound is most stable?

1. [Co(NH3)3(NO3)3]
2. [CoCl2(en)2]NO3
3. [Co(NH3)6]2(SO4)3
4. [Co(NH3)4(H2O)Br](NO3)2

The IUPAC name of the complex [Ag(H2O)2][Ag(CN)2] is:

1. dicyanidosilver(II) diaquaargentate(II)
2. diaquasilver(II) dicyanidoargentate(II)
3. dicyanidosilver(I) diaquaargentate(I)
4. diaquasilver(I) dicyanidoargentate(I)

The order of energy absorbed which is responsible for the color of complexes (A) [Ni(H2O)2(en)2]2+ (B) [Ni(H2O)4(en)]2+ and (C) [Ni(en)3]2+ is

1. (A) > (B) > (C)
2. (C) > (B) > (A)
3. (C) > (A) > (B)
4. (B) > (A) > (C)

Match List-I with List-II : Choose the correct answer from the options given below :

1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
2. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
3. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
4. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below.

1. (A) is not correct but (R) is correct
2. Both (A) and (R) are correct and (R) is the correct explanation of (A)
3. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
4. (A) is correct but (R) is not correct

Ethylene diaminetetraacetate (EDTA) ion is :

1. Tridentate ligand with three "N" donor atoms
2. Hexadentate ligand with four "O" and two "N" donor atoms
3. Unidentate ligand
4. Bidentate ligand with two "N" donor atoms

Match List-I with List-II : Choose the correct answer from the options given below.

1. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
2. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
3. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
4. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?

1. SCN- < F- < CN- < C2O42-
2. F- < SCN- < C2O42- < CN-
3. CN- < C2O42- < SCN- < F-
4. SCN- < F- < C2O42- < CN-

What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory?

1. t2g4 eg2
2. t2g6 eg0
3. e3 t23
4. e4 t22

Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :

1. (a)-(iv), (b)-(v), (c)-(ii), (d)-(i)
2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
3. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
4. (a)-(iii), (b)-(v), (c)-(i), (d)-(ii)