Exam Questions and CORRECT Answers
Ceramics Definition - CORRECT ANSWER - elements composed of atleast 2 elements
(from pure ionic to covalent)
Size of anion is ______ than cation - CORRECT ANSWER - greater
Crystal Structure is purely influenced by 2 factors - CORRECT ANSWER - 1. electrical
charge 2. size of anion and cation
True or Flase: Rc/Ra is less than 1 - CORRECT ANSWER - True
What prefers to have as many nearest neighbour anions - CORRECT ANSWER - cation
What prefers to have maximum cations - CORRECT ANSWER - anion
if the ratio of the radii is greater than 1, the coordination number is? - CORRECT
ANSWER - 12
Size of an Ion depends on 2 factors - CORRECT ANSWER - 1. Coordination No. 2.
Charge of ion
Most Common Ceramics are - CORRECT ANSWER - #cations = #anions, AX
compounds
Formula for AX-Type with coordination number of 6 - CORRECT ANSWER - a=2(rc+ra)