An ionic solid crystallises in bcc structure. If the ionic radii of cation and anion are 0.84 Å and 1.07 Å, the length of the body diagonal is
A. 1.91 Å
B. 2.75 Å
C. 3.82 Å
D. 2.32 Å
Answer:C
An ionic solid crystallises in bcc structure. If the ionic radii of cation and anion are 0.84 Å and 1.07 Å, the length of the body diagonal is
A. 1.91 Å B. 2.75 Å C. 3.82 Å D. 2.32 Å