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The Solid State

Question
CBSEENCH12005553
Wired Faculty App

CsCl has which type of lattice?
  • SC
  • fcc

  • bcc

  • hcp

Solution

C.

bcc

Question
CBSEENCH12005554
Wired Faculty App

If the distance between Na+ and CI– ions in NaCl crystal is a pm, what is the length of the cell edge?
  • 2a pm 
  • a / 2 pm
  • 4a pm

  • a/4 pm

Solution

A.

2a pm 

Question
CBSEENCH12005555
Wired Faculty App

A compound is formed by elements A and B. This crystallises in the cubic structure when atoms A are at the corners of the cube and atoms B are at the centre of the body. The simplest formula of the compound is:
  • AB
  • AB2
  • A2B
  • AB4

Solution

A.

AB

Question
CBSEENCH12005556
Wired Faculty App

Name the crystal defect which lowers the density of an ionic crystal

Solution

Density of crystal is lowered by shottky defect.

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