NEET UG CHEMISTRY MCQ: SOLID STATE

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Potassium fluoride has

NaCl

type structure. What is the distance between

{K^ + }

and

{F^ - }

ions if cell edge is

a

cm?

View answer and explanation

Correct option: A

\frac{a}{2}\mathrm{cm}

Option A (

\frac{a}{2}\mathrm{cm}

) is correct because in a

NaCl

type structure, the distance between nearest cation and anion is half of the cell edge.

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\mathrm{C}{\mathrm{s}^ + }

\mathrm{C}{\mathrm{I}^ - }

\;0.181\,\,nm

A

B

A

Y