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The Solid State

Question
CBSEENCH12011267
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AB crystallises in a body centred cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositely charged ion in the lattice is

  • 335 pm

  • 250 pm

  • 200 pm

  • 300 pm

Solution

A.

335 pm

For body centred cubic (bcc) lattice, distance between two oppositely charged ions,
straight d space equals space fraction numerator square root of 3 straight a end root over denominator 2 end fraction space equals space fraction numerator square root of 3 space end root space straight x space 387 over denominator 2 end fraction space pm equals space 355.15 space pm space

Some More Questions From The Solid State Chapter

Ionic solids conduct electricity in liquid state but not in solid state. Explain.

What type of solids are electrical conductors, malleable and ductile?

Give the significance of a 'lattice point'.

Name the parameters that characterize a unit cell.

Distinguish between Hexagonal and monoclinic unit cells.

Distinguish between Face-centred and end-centred unit cells.

What is the two-dimensional coordination number of a molecule in square close packed layer ?

A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3 of tetrahedral voids. What is the formula of the compound?

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