Question

Chapter 1
Solid State
Marks 3 with options
Multiple choice questions (1 mark)
1. The following types of solids contain molecules as consument particles?
(page 4)
the molecular solids
b. lonte solids
c. metallie solids
d. covalent network solids
2. The following crystal systems contain 4 Bravnis lattices?
a cubic
b. tetragonal
(nage7)
c orthorbombie
d. monoclinic
3. An octahedral void is surrounded by
4 spheres
b. 3 spheres
c. 8 spheres
(page 10)
d. 6 spheres
4. Which of the following is an amorphous solid?
a. Copper sulphate
b. magnesium
(page2)
c. dinmond
c.inr
5. A paired cation-union vacancy is called...
(page 17)
a. Schottky defect
b. Frenkel defect
c. impurity defect
d. vacancy defect
6. The unit cell of a simple cubic system has atoms at the eight comers. Hence, mumber of atoms in an unit cell is
28
b. 3
c. 1
7. In crystal lattice formed by primitive unit cell, the space occupied by particles is
(pagen)
3.47.6%
a. 52.4%
(page 12)
b. 32%
c. 68%
8. The coordination number of spheres in bcp lattice in three dimension is
(pagell)
a. 2
b. 6
c. 4
d. 12
9. A compound is made up of two elements X and Y and crystallizes in bcc structure. Atoms of X are present at the
corners of the cube. Atoms of Y are present at the centre of the cube. The formula of the compound is
a. XY
b. XY
c. XY
d. X Y
(page14)
10. Sodium crystallizes in bcc structure. If the edge length of unit cell is 4.3X10 cm, the radius of Na atom is
a. 1.86x10 cm
b. 1.52x10 cm
2.15x10cm
d. 4.3x10 cm
(page 12
mi chort myer mestions (Mark)​

Answer 1

Answer:

1) c) metal solid

2) a) cubic

3)d) 6 sphere

4)d) INR

5) c) impurity defect