In the dry point technique, a sharp needle is used to scratch the surface of a metal plate, creating an incision. The burr, a thin metal ridge raised on either side of the line, traps the ink, resulting in rich, velvety textures in the final print.
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: