Solid State Chemistry MCQs

A crystalline solid where constituent particles are held together by weak intermolecular forces such as van der Waals forces or hydrogen bonds.

A semiconductor material where the majority charge carriers are electrons, created by doping with an element having more valence electrons than the host.

A point defect in a crystal lattice where an ion is displaced from its normal lattice site to an interstitial site, creating a vacancy.

The number of nearest neighbor atoms surrounding a central atom in a crystal lattice.

A crystal structure where atoms are arranged in hexagonal layers, with each layer having two types of voids: octahedral and tetrahedral. In a hexagonal close-packed (HCP) structure, there are two tetrahedral voids for each atom and one octahedral void for every two atoms.

A crystal structure where atoms (or ions) are arranged in a regular, repeating pattern, forming a cubic lattice.

A type of crystal structure where the atoms are arranged in a cubic lattice with one atom at each corner of the cube. The relationship between edge length 'a' and atomic radius 'r' is a = 2r.

A crystal structure where the atoms (or ions) are arranged in a cubic lattice with one atom at each corner and one atom in the center of the cube.

A type of crystal structure where the atoms are arranged in a cubic lattice with one atom at each corner and an atom at the center of each face of the cube. In an ionic compound, the cations (positive ions) usually occupy the corners while the anions (negative ions) occupy the faces.

A point defect in a crystal lattice where an atom is missing from its usual lattice position, creating a vacant site.