AB crystallizes in a body centred cubic lattice with edge length ‘a’ equal

AB crystallizes in a body centred cubic lattice with edge length ‘a’ equal to 387 pm. The distance between two oppositely charged ions in the lattice is

Options

(a) 335 pm
(b) 250 pm
(c) 200 pm
(d) 300 pm

Correct Answer:

335 pm

Explanation:

For a bcc lattice,
2(r⁺+r⁻) = √3 a
where r⁺ = radius of cation
r⁻ = radius of anion
a = edge length
.·. (r⁺+r⁻) = √3 ⨯ 387/2
= 335.142 pm ≈ 335 pm.

admin:

Related Questions

  1. oxidation state of oxygen in F₂O is
  2. In which of the following hydrocarbons, hydrogen is most acidic
  3. Bleaching powder is obtained by treating Cl₂ with
  4. In SN2 reaction the sequence of bond breaking and bond formation is as follows
  5. How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C