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

NTA Abhyas 2020 · Chemistry · Solid State

The shortest distance between two Na + ions in rock-salt...

The shortest distance between two Na+ ions in rock-salt arrangement having edge length equal to a2a\sqrt{2 } picometers is-

Options

  1. A2a2a
  2. B2a22a\sqrt{2}
  3. Ca2\dfrac{a}{\sqrt{2}}
  4. Daa

Correct answer

D. aa

Step-by-step solution

Distance between two Na+{\text{Na}}^{\text{+}} is 12\dfrac{1}{\sqrt{2}} times of edge length
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