If the distance between ${\rm{N}}{{\rm{a}}^ + }$ and ${\rm{C}}{{\rm{I}}^ - }$ ions in NaCl crystal is ‘$a$’ pm what is the length of the cell edge?

NEET UG CHEMISTRY MCQ: SOLID STATE

1 Medium

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Application +4 | -1

If the distance between

\mathrm{N}{\mathrm{a}^ + }

and

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

ions in NaCl crystal is ‘

a

’ pm what is the length of the cell edge?

View answer and explanation

Correct option: C

2a\,\,\mathrm{pm}

Option C (

2a\,\,\mathrm{pm}

) is correct because in NaCl, the distance between Na+ and Cl- ions is half the cell edge length.