d- and f-Block Elements

Which of the following ions is the strongest oxidizing agent? (Atomic Number of Ce = 58, Eu = 63, Tb = 65, Lu = 71)

1. Lu3+
2. Eu2+
3. Tb4+
4. Ce3+

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

1. (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
2. (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
3. (A)-(III), (B)-(I), (C)-(II), (D)-(IV)
4. (A)-(IV), (B)-(II), (C)-(III), (D)-(I)

The correct set of ions (aqueous solution) with same colour from the following is:

1. V2+, Cr3+, Mn3+
2. Ti4+, V4+, Mn2+
3. Sc3+, Ti3+, Cr2+
4. Zn2+, V3+, Fe3+

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

1. A-IV, B-II, C-III, D-I
2. A-IV, B-III, C-I, D-II
3. A-III, B-I, C-IV, D-II
4. A-III, B-IV, C-II, D-I

Consider the following reactions K2Cr2O7 [-H2O]KOH [A] [-H2O]H2SO4 [B] + K2SO4 The products [A] and [B], respectively are :

1. K2Cr(OH)6 and Cr2O3
2. K2CrO4 and Cr2O3
3. K2CrO4 and K2Cr2O7
4. K2CrO4 and CrO

Lanthanoid ions with 4f7 configuration are : Choose the correct answer from the options given below :

1. B and E only
2. B and C only
3. A and D only
4. A and B only

The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following is correct?

1. Cu(II) is more stable
2. Cu(II) is less stable
3. Cu(I) and Cu(II) are equally stable
4. Stability of Cu(I) and Cu(II) depends on nature of copper salts

Number of colourless lanthanoid ions among the following is . Eu3+, Lu3+, Nd3+, La3+, Sm3+

The electronic configuration of Einsteinium is : (Given atomic number of Einsteinium = 99)

1. [Rn]5f136d07s2
2. [Rn]5f126d07s2
3. [Rn]5f116d07s2
4. [Rn]5f106d07s2

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

1. Statement I is true but Statement II is false
2. Both Statement I and Statement II are false
3. Both Statement I and Statement II are true
4. Statement I is false but Statement II is true