An etching needle is a sharp tool used in intaglio printmaking to create designs on a metal plate coated with acid-resistant ground. By scratching through the ground, the needle exposes the metal beneath, which is later bitten by acid to form grooves.
LIST I | LIST II | ||
---|---|---|---|
A | Water colour | I | Egg |
B | Tempera | II | Conte Crayons |
C | Pastel | III | Wash |
D | Tonal Drawing | IV | Gum or Resin/Wax |
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: