Diastereomers are stereoisomers that have the same molecular formula and connectivity but are not mirror images of each other. They differ in physical and chemical properties, unlike enantiomers which are mirror images.
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: