NEET The Solid State PYQ practice sheet

7 previous-year NEET Chemistry questions from The Solid State, newest papers first. The Solid State carries 7 of the Chemistry questions in NEET 2020 to 2026, so this is a good place to test yourself after revising the chapter. Marking: +4 correct, −1 wrong.

1. 1.

   NEET 2023

   A compound is formed by two elements A and B. The element B forms cubic close packed structure and atoms of A occupy $1/3$ of tetrahedral voids. If the formula of the compound is $\mathrm{A_xB_y}$, then the value of $x + y$ is in option

   • (A)
     2
   • (B)
     5
   • (C)
     4
   • (D)
     3
2. 2.

   NEET 2023

   What fraction of one edge centred octahedral void lies in one unit cell of fcc?

   • (A)
     $\dfrac{1}{12}$
   • (B)
     $\dfrac{1}{2}$
   • (C)
     $\dfrac{1}{3}$
   • (D)
     $\dfrac{1}{4}$
3. 3.

   NEET 2022

   Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In a particular point defect, an ionic solid is electrically neutral, even if a few cations are missing from its unit cells. Reason (R): In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality. In the light of the above statements, choose the most appropriate answer from the options given below:

   • (A)
     (A) is not correct but (R) is correct
   • (B)
     Both (A) and (R) are correct and (R) is the correct explanation of (A)
   • (C)
     Both (A) and (R) are correct but (R) is not the correct explanation of (A)
   • (D)
     (A) is correct but (R) is not correct
4. 4.

   NEET 2022

   Copper crystallises in fcc unit cell with cell edge length of $3.608\times10^{-8}$ cm. The density of copper is $8.92\ \text{g cm}^{-3}$. Calculate the atomic mass of copper.

   • (A)
     65 u
   • (B)
     63.1 u
   • (C)
     31.55 u
   • (D)
     60 u
5. 5.

   NEET 2021

   The correct option for the number of body centred unit cells in all 14 types of Bravais lattice unit cells is :

   • (A)
     2
   • (B)
     7
   • (C)
     3
   • (D)
     5
6. 6.

   NEET 2021

   Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are :

   • (A)
     2, 1
   • (B)
     6, 12
   • (C)
     12, 6
   • (D)
     8, 4
7. 7.

   NEET 2020

   An element has a body centered cubic (bcc) structure with a cell edge of $288$ pm. The atomic radius is :

   • (A)
     $\frac{\sqrt3}{4}\times288$ pm
   • (B)
     $\frac{\sqrt2}{4}\times288$ pm
   • (C)
     $\frac{4}{\sqrt3}\times288$ pm
   • (D)
     $\frac{4}{\sqrt2}\times288$ pm