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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Solid State

NTA Abhyas 2020 · Chemistry · Solid State

The radius ratio of KF is 0.98. The structure of KF is the type.

The radius ratio of KFKF is 0.98. The structure of KFKF is the type.

Options

  1. ANaClNaCl
  2. BZnSZnS
  3. CCsClCsCl
  4. DCaF2Ca{F}_{2}

Correct answer

C. CsClCsCl

Step-by-step solution

As r+r−\dfrac{r +}{r -} lies in the range 0.732 - 1.000. Hence co-ordination number is 8 and KFKF is of CsClCsCl type.
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