1. Spin only' magnetic moment same for which of the following ions?
A. \(\text{Ti}^{3+}\)
B. \(\text{Cr}^{2+}\)
C. \(\text{Mn}^{2+}\)
D. \(\text{Fe}^{2+}\)
E. \(\text{Sc}^{3+}\)
Choose the most appropriate answer from the options given below:

(1).B and C only

(2). A and D only

(3). B and D only

(4). A and E only

2. The pair of lanthanoid ions which are diamagnetic is

(1).\(\text{Gd}^{3+}\) and \(\text{Eu}^{3+}\)

(2). \(\text{Pm}^{3+}\) and \(\text{Sm}^{3+}\)

(3). \(\text{Ce}^{4+}\) and \(\text{Yb}^{2+}\)

(4). \(\text{Ce}^{3+}\) and \(\text{Eu}^{2+}\)

3. Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.
A. \(\text{Al}^{3+}\)
B. \(\text{Cu}^{2+}\)
C. \(\text{Ba}^{2+}\)
D. \(\text{Co}^{2+}\)
E. \(\text{Mg}^{2+}\)
Choose the correct answer from the options given below:

(1).E, C, D, B, A

(2). E, A, B, C, D

(3). B, A, D, C, E

(4). B, C, A, D, E

4. Match List - I with List - Il

Choose the correct answer from the options given below :

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

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

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

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

5. Given below are two statements :
Statement I : Ferromagnetism is considered as an extreme form of paramagnetism.
Statement II : The number of unpaired electrons in a \(Cr^{2+}\) ion (Z=24) is the same as that of a \(Nd^{3+}\) ion (Z= 60).
In the light of the above statements, choose the correct answer from the options given below :

(1).Statement I is false but Statement II is true

(2). Both Statement I and Statement II are true

(3). Both Statement I and Statement II are false

(4). Statement I is true but Statement II is false