Vicuna is a natural fiber derived from the animal Vicuna, native to South America. It is known for its softness and rarity. Synthetic fibers like Nylon, Acrylic, and Polyester are man-made, developed through chemical processes for specific applications.
LIST I (Branches) | LIST II (Study area) | ||
---|---|---|---|
A | Podogram | I | Footprints |
B | Cheiloscopy | II | Fingerprints |
C | Palatoscopy | III | Lip prints |
D | Dactylography | IV | Palatal rugae |
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: