Embibe Experts Solutions for Chapter: The d- and f-Block Elements, Exercise 1: BITSAT 2017

Which of the following lanthanoid is diamagnetic?

Atomic no's $\mathrm{Sm}=62, \mathrm{Ce}=58, \mathrm{Eu}=63, \mathrm{Yb}=70$

Spin only magnetic moment of ${\mathrm{Mn}}^{4+}$ ion is nearly

Which among the following actinoids does not have stable electronic configuration

When dil. sulphuric acid reacts with aqueous solution of potassium chromate, the colour changes from yellow to orange. This shows that

Which of the following shows maximum magnetic moment?