NEET UG CHEMISTRY MCQ: SOLID STATE

1 Hard

1 of 1

Understanding +4 | -1

If the distance between

{Na}^{+}

and

{Cl}^{-}

ions in sodium chloride crystal is

y

pm, the length of the edge of the

{c}

unit cell is

View answer and explanation

Correct option: D

2 {y}\, {pm}

Option D (

2 {y}\, {pm}

) is correct because in an FCC structure like NaCl, the edge length is twice the distance between the ions.

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

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

\;0.181\,\,nm

A

B

A

Y