+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

The Solid State

Question
CBSEENCH12010277
Wired Faculty App

Define the following terms:

(i) Primitive unit cells

(ii) Schottky defect

(iii) Ferromagnetism

Solution

(i) Primitive unit cells are defined as the unit cells in which the constituent particles are present only at the corner positions.

(ii) Schottky defect: Schottky defect is basically a vacancy defect shown ionic solids. In this defect, an equal no cation and anion are missing to maintain electrical neutrality. It decreases the density of a substance. An Ionic substance containing the similar size of cations and anion show this type of defect. For example: NaCl, KCl, CsCl, AgBr, etc.

(iii) Ferromagnetism is defined as the phenomenon in which substances, such as iron, cobalt and nickel, are strongly attracted by a magnetic field. Such substances are called ferromagnetic substances.

Some More Questions From The Solid State Chapter

Ionic solids conduct electricity in liquid state but not in solid state. Explain.

What type of solids are electrical conductors, malleable and ductile?

Give the significance of a 'lattice point'.

Name the parameters that characterize a unit cell.

Distinguish between Hexagonal and monoclinic unit cells.

Distinguish between Face-centred and end-centred unit cells.

What is the two-dimensional coordination number of a molecule in square close packed layer ?

A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3 of tetrahedral voids. What is the formula of the compound?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation