NEET Chemistry The Solid State MCQs

Simple Cubic

Body-centered Cubic

FCC

Hexagonal Close Packed

The transition is melting, and the high-temperature phase is a liquid.

The transition is sublimation, and the high-temperature phase is a gas.

The transition is a solid-state phase change to a more disordered structure, and the high-temperature phase is likely more isotropic and potentially amorphous or cubic.

The transition is a chemical decomposition, and the high-temperature phase consists of simpler molecular species.

The charge of the ions M$^+$ and X$^−$

The internuclear distance between M$^+$ and X$^−$

The electronegativity difference between M and X

The Madelung constant for the crystal structure

$m/r^2$

$m^2/r^2$

$m^2/r^3$

$m^2/r^4$

Metal excess defect due to interstitial Fe ions

Metal deficiency defect with $Fe^{3+}$ ions occupying some $Fe^{2+}$ sites

Anion excess defect due to interstitial oxygen ions

Presence of impurities

MnO - antiferromagnetism

GaAs - Insulator

$MgF{e_2}{O_4}\; - {\rm{ }}Ferrimagnetism$

$Cr{O_2}\; - {\rm{ }}Ferromagnetism$

MnO - antiferromagnetism

GaAs - Insulator

$MgF{e_2}{O_4}\; - {\rm{ }}Ferrimagnetism$

$Cr{O_2}\; - {\rm{ }}Ferromagnetism$

${\rm{C}}{{\rm{I}}^ - }$ ions are in fcc arrangement

$N{a^ + }$ ions has coordination number 4

${\rm{C}}{{\rm{I}}^ - }$ ions has coordination number 6

Each cell contains 4 ${\rm{NaCl}}$ molecules

Every real number is a rational number

Every integer is a rational number

Every rational number is a real number

Every irrational number is a real number

The two crystals are not isomorphous

The molar mass of ${\rm{NaF}}$ is smaller than that of ${\rm{RbBr}}$

The internuclear distance ${r_{\rm{c}}} + {r_{\rm{a}}}$ is greater for ${\rm{RbBr}}$ than for ${\rm{NaF}}$

The bond is ${\rm{RbBr}}$ has more covalent character than the bond in ${\rm{NaF}}$.