SOLID STATE CHEMISTRY XII BASIC

Solid which shows isotropic nature is

• crystalline solids

• molecular solids

• amorphous solids

• ionic solids

silicon carbide is an example of

• molecular solid

• ionic solid

• metallic solid

• network solid

Which of the following is an insulator and hard in nature ?

• hydrogen

• iron

• quartz

• ZnS

The regular 3D arrangement of points in space is called

• unit cell

• lattice points

• Bravais lattice

• Crystal lattice

Rhombic sulphur is an example of

• Cubic

• Orthorhombic

• Tetragonal

• Rhombohedral

The number of nearest particles which is in direct contact with a particle in a closed packed structure

• Unit Cell

• Void

• Packing efficiency

• Coordination number

Smallest repeating unit of crystal lattice

• Lattice site

• Unit cell

• Crystal lattice

• Lattice point

There are ……….. Bravais lattices corresponding to 7 different Crystal Systems

• 8

• 9

• 14

• 13

Number of atoms per unit cell in a Face Centered Cubic lattice

• 4

• 1

• 2

• 6

The wrong statement about Para magnetism

• They are weakly attracted by a magnetic field

• They are magnetized in a magnetic field in the same direction

• They keep their magnetism in the absence of magnetic field

• It is due to the presence of one or more unpaired electrons