JEE Main Solid State Out of Syllabus Practice Questions With Solutions

The correct relationships between unit cell edge length '$a$a' and radius of sphere '$r$r' for face-centred and body-centred cubic structures respectively are :

A compound is formed by two elements $\mathrm{X}$X and $\mathrm{Y}$Y. The element $\mathrm{Y}$Y forms cubic close packed arrangement and those of element $\mathrm{X}$X occupy one third of the tetrahedral voids. What is the formula of the compound?

Which of the following represents the lattice structure of ${\mathrm{A}}_{0.95}\mathrm{O}$A_{0.95} O containing ${\mathrm{A}}^{2+},{\mathrm{A}}^{3+}$A^{2 +} , A^{3 +} and ${\mathrm{O}}^{2-}$O^{2 -} ions?

A cubic solid is made up of two elements X and Y. Atoms of X are present on every alternate corner and one at the center of cube. Y is at ${\frac{1}{3}}^{\mathrm{rd}}$\left(\frac{1}{3}\right)^{rd} of the total faces. The empirical formula of the compound is :

An element X has a body centred cubic (bcc) structure with a cell edge of 200 pm. The density of the element is 5 g cm^$-$-3. The number of atoms present in 300 g of the element X is _______________.

Given : Avogadro constant, N_A = 6.0 $\times$\times 10²³ mol^$-$-1.

The incorrect statement about the imperfections in solids is :