Problem 1
Which of the following is not a feature of solids? (a) definite mass and volume (b) frequent fluidity (c) rigidity (d) definite shape
Problem 2
Which of the following is not a characteristic of amorphous solids? (a) have sharp melting point (b) have non-orderly or very short-range orderly arrangement (c) show isotropy (d) have tendency to undergo irregular cleavage
Problem 3
Which of the following is not a property of crystalline solids? (a) show isotropy (b) have a sharp melting point (c) have anisotropic nature (d) have a long-range orderly arrangement
Problem 4
Which of the following is a non-crystalline solids' pair? (a) diamond, wood (b) glass, table salt (c) wood, glass (d) sucrose, glass
Problem 5
Which of the following is a molecular solid? (a) \(\mathrm{I}_{2}\) (b) wax (c) ice (d) all of these
Problem 6
Which type of solids here are generally good conductors of electricity? (a) metallic (b) covalent (c) ionic (d) molecular
Problem 7
Among the following which is/are not crystalline solid(s)? (a) glass (b) sodium chloride (c) sucrose (d) both (b) and (c)
Problem 8
Which of the following has hexagonal structure? (a) diamond (b) sodium chloride (c) graphite (d) both (a) and (c)
Problem 9
The total number of crystal systems and the number of Bravais lattices are respectively (a) 7,7 (b) 7,14 (c) 14,14 (d) 9,16
Problem 10
Out of seven crystal systems how many can have body-centred unit cell? (a) 4 (b) 2 (c) 3 (d) 5
