In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells?

(a)

8

(b)

4

(c)

2

(d)

6

What is wrong about a.b.c.c. unit cell?

(a)

In addition to an atom at the centre of the body of the unit cell, there are 8 atoms at 8 different corners

(b)

\(\frac{1}{8}\) atom at a corner of the unit cell

(c)

No. of atoms in the unit cells is 2

(d)

The no. of atoms in the unit cells is 4

Which one of the following does not belong to AB type?

(a)

Cu₂O

(b)

CsCl

(c)

FeS

(d)

ZnS

The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called_______.

(a)

Space lattice

(b)

Crystal lattice

(c)

Unit cell

(d)

Isomorphism

The number of close neighbours in a body centred cubic lattice of identifical spheres is _______.

(a)

6

(b)

4

(c)

12

(d)

8