Intro ...6

Question 1

Solid ……..liquid………..gas………..plasma

Answer 1

Melting……….vapourisation……………ionization
Freezing…………condensation…………….deionise

Question 2

Crystalline solid ……….amorphous solid

Answer 2

Anisotropic, NACL…………..isotropic, rubber

Question 3

Metallic solid
Ionic solid
Covalent solid

Answer 3

Cation of metal and electron of metals ,metallic bond,Na…MG….fe
Cation and anion,electrostatic interaction,NaCl
Atoms,covalent bond ,graphite …..diamond

Question 4

Molecular nonpolar
Polar
Hydrogenbonded

Answer 4

Atom ornonpolarmolecule,dispersion force,He…H2…CCl4

Polar molecule ,dimple dipole interaction, CHCl3,HCl

Hydrogen atom bonded to heterostom,hydrogen bonding,H2O….NH3

Question 5

Explain iso or an isotropy

Answer 5

Isotropic is amorphous soli have same properties In all the directions like the liquid and gases ….anisotropic is just opposite

Question 6

Who are supercool liquid

Answer 6

Amorphous solid

Question 7

Explain lattice

Answer 7

Honey bee wax is like a lattice and each hexagonal structure if unit cell

Question 8

How many types of units cell on the basis of arrangement

Answer 8

Primitive …Atoms present on corners
Bcc
Fcc

Question 9

Types of unit cell on the basis of length and bond angles

Answer 9

Cubic ……it can be primitive,bcc,fcc

Question 10

In pic one atom is shared by 8 unit cell so 1 atom contribution for 1 unit cell is

Answer 10

1/8th

Question 11

Atom present on centre is only shared by 1 unit cell soo there contribution for 1 unit cell is

Answer 11

1

Question 12

Atom present on face centre shared by 2 unit cell and contribution to 1 unit cell is

Answer 12

1/2

Question 13

A compound has M,X Atoms
M present on corner+body centre
X present on face

Answer 13

M2X3

Question 14

No. Of rotational axes for triclinic

Answer 14

0