Bihar Board Class 12th Chemistry
Objectives Type Questions
1. Which one of the following is an example of an amorphous solid ?
a. NaCL
b. ZnS
c. Glass
d. SiC
Ans – ( C )
2. An example of amorphous solid is
a. Diamond
b. Graphite
c. Salt
d. Rubber
Ans – ( D )
3. When an electron occupies the empty space of negatively change ions, then the defect in crystal is
a. Schottky defect
b. Frenkel defect
c. F-Centre
d. None of these
Ans – ( C )
4. In hep unit cell, number of atoms is
a. 4
b. 6
c. 12
d. 7
Ans – ( B )
5. Which of the following is a crystalline Solid ?
a. Diamond
b. Glass
c. Rubber
d. All of these
Ans – ( A )
6. Which of the following is an amorphous solid ?
a. Graphite
b. Glass
c. Diamond
d. All of these
Ans – ( B )
7. Crystals are
a. Four types
b. Three types
c. Seven types
d. All
Ans – ( B )
8. Which of the following in an amorphous solid ?
a. Sugar
b. Diamond
c. KCL
d. Glass
Ans – ( D )
9. In Which of the following pairs of structure are tetrahedral as well as octahedral voids respectively ?
a. bcc and FCC
b. hep and simple cubic
c. hep and CCP
d. bcc and hep
Ans – ( C )
Bihar Board Objective Question 2024
10. The coordination number of a metal crystallizing in hexagonal close packed ( hep ) structure is
a. bcc and fcc
b. hep and simple cubic
c. hep and ccp
d. bcc and hep
Ans – ( C )
11. The coordination number of a metal crystallizing in hexagonal close packed ( hep ) structure is.
a. 12
b. 8
c. 4
d. 6
Ans – ( A )
12. The number of basic crystal system is
a. 4
b. 6
c. 7
d. 8
Ans – ( D )
13. In fcc cubic cell, an atom at the face centre is shared by
a. 6 unit cell
b. 1 unit cell
c. 2 unit cell
d. 4 unit cell
Ans – ( C )
14. Good conductor of electricity and heat is
a. Anthracite coke
b. Diamond
c. Graphite
d. Charcoal
Ans – ( C )
15. Criteria for purity of organic solid is
a. boiling point
b. melting point
c. specific gravity
d. none of these
Ans – ( B )
16. Which one of the following is non-crystalline or amorphous ?
a. Diamond
b. Graphite
c. Glass
d. Common Salt
Ans – ( C )
17. Which has hep crystal structure ?
a. NaCL
b. CsCl
c. Zn
d. RbCl
Ans – ( C )
Class 12th Bihar Board Class 12th Chemistry
18. Which of the following will have metal deficiency defect ?
a. NaCl
b. FeO
c. KCl
d. ZnO
Ans – ( B )
19. The co-ordination number of body centred unit cell is
a. 4
b. 6
c. 8
d. 12
Ans – ( C )
20.:The highest ferromagnetism is found in
a. Fe
b. Ni
c. Co
d. None
Ans – ( A )
21. Schottky defect is found in
a. NaCl
b. KCl
c. CsCl
d. All
Ans – ( D )
22. The resistance of mercury becomes zero at
a. 4K
b. 10K
c. 20K
d. 25K
Ans – ( A )
23. The substance used in solar cell contains
a. Cs
b. Si
c. Sn
d. Ti
Ans – ( B )
24. The co-ordination number in bcc is
a. 8
b. 6
c. 4
d. 12
Ans – ( A )
25. Frenkel and Schottky defects both are in
a. NaCl
b. AgCl
c. AgBr
d. KCL
Ans – ( C )
| Latest Update | Click Here |
| Home Page | Click Here |
Bihar Board Objective Question, Class 12 Bihar Board Exam Questions, Bihar Board Viral Questions 2024, Viral Bihar Board 2024 Chemistry Question, Bihar Board Exam 2024, Class 12 Inter Exam Questions, Bihar Board Inter Chemistry Viral Questions,