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 $\mathrm{Cr}^{2+}$ ion $(\mathrm{Z}=24)$ is the same as that of a $\mathrm{Nd}^{3+}$ ion $(\mathrm{Z}=60)$.
In the light of the above statements, choose the correct answer from the options given below :
Baeyer's reagent is :
Which of the following pairs of ions will have same spin only magnetic moment values within the pair?
A. $$\mathrm{Zn}^{2+}, \mathrm{Ti}^{2+}$$
B. $$\mathrm{Cr}^{2+}, \mathrm{Fe}^{2+}$$
C. $$\mathrm{Ti}^{3+}, \mathrm{Cu}^{2+}$$
D. $$\mathrm{V}^{2+}, \mathrm{Cu}^{+}$$
Choose the correct answer from the options given below :
Which of the following set of ions act as oxidising agents?