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Board Maharashtra  State Council of Educational Research and Training
Class Class 12th / HSC
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Stream Science
Subject Chemistry
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Maharashtra HSC Question Bank

Maharashtra  State Council of Educational Research and Training, Pune Class 12th/HSC Chemistry Question Bank With Answer Key March 2021

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Class XII Chemistry
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Maharashtra Class XII Chemistry Sample Questions

Chapter- 1 : Solid State

Multiple Choice Questions:
1. The following types of solids contain molecules as constituent particles? (page 4)
a. molecular solids
c. metallic solids
b. Ionic solids
d. covalent network solids

2. The following crystal systems contain 4 Bravais lattices? (page7)
a. cubic
b. tetragonal
c. orthorhombic
d. monoclinic

3. An octahedral void is surrounded by (page10)
a. 4 spheres
b. 3 spheres
c. 8 spheres
d. 6 spheres

4. Which of the following is an amorphous solid? (page2)
a. Copper sulphate
b. magnesium
c.tar
d. diamond

5. A paired cation-anion 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 corners. Hence, number of atoms in an unit cell is (page 6)
a. 8
b. 3
c. 1
d. 2

7. In crystal lattice formed by primitive unit cell, the space occupied by particles is (page12)
a.47.6%
a. 52.4%
b. 32%
c. 68%

8. The coordination number of spheres in hcp lattice in three dimension is (page11)
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. X2Y
b. XY
c. XY2
d. X2Y3

10. Sodium crystallizes in bcc structure. If the edge length of unit cell is 4.3X10-8 cm, the radius of Na atom is
a. 1.86×10-8cm
c. 2.15×10-8 cm
b. 1.52×10-8 cm
d. 4.3×10-8 cm

Very Short Answer Questions:
1. Write the effect on density of a substance in the Frenkel defect? (page18)
2. Name the bravais lattice in the triclinic system. (page7)
3. What are diamagnetic substances? (page25)
4. Give one property common to both hcp and ccp crystal lattices. (page11)
5. Write the relationship between radius of atom and edge length of fcc unit cell. (page13)
6. Draw diagram of bcc unit cell. (page6)
7. The number of tetrahedral voids are formed if the number of atoms in a crystal is N/2. (page 11)
8. Give the percentage of empty space in bcc lattice. (page13)

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