JEE Main 2022ChemistrySolid StateHardNumerical

JEE Main 2022 — Solid State Question with Solution

JEE Main 2022 (25 Jun Shift 1)

Question

The distance between Na+ and Cl- ions in solid NaCl of density 43.1 gcm-3 is .....×10-10 m. (Nearest Integer)
(Given : NA=6.02×1023 mol-1)

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Correct answer
1

Step-by-step explanation

For NaCl Z=4 and M=58.5 gram

d=Z×MNA×Volume

43.1=4×58.56.02×1023×a3

a3=4×58.56.02×43.1×10-23

=0.9×10-23

=9×10-24

a=2.08×10-8 cm

dNa++Cl-=a2=2.08×10-102 m ≃1×10-10 m

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About this question

This is a previous-year question from JEE Main 2022, covering the Solid State chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.