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Solid State
- Online Test
Solid State
TEST : 2
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q1.
Ionic solids containing large differences in sizes of ions show
A.
F – centeirs
B.
Frenkel defect
C.
Schottky defect
D.
Interstitials defect
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
Smaller atoms can easy occupy interstitial postion showing Frenekel Defect.
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q2.
Defect shown by non – ionic solids is
A.
Interstitials defect
B.
Frenkel defect
C.
F – centers
D.
Schottky defect
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
Non ionic solids shows interstitial defect.
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q3.
Which is true for F – centers?
A.
Density of the substance increases
B.
Imparts colour to the crystal
C.
Creates vacancy
D.
Decreases density of the substance
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
The paired electron can get excited and on returning back to ground state it emits light thus imparts color
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q4.
The paired electron can get excited and on returning back to ground state it emits light thus imparts color
A.
Ferromagnetic
B.
Diamagnetic
C.
Paramagnetic
D.
Ferrimagnetic
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
Diamagnetic substances have full filled electrons so they are replealed by Magnetic field.
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q5.
All those atoms or molecules which have an odd number of electrons are
A.
Diamagnetic
B.
Ferromagnetic
C.
Ferrimagnetic
D.
Paramagnetic
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
They will have unpaired electrons
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q6.
Substances that are strongly attracted by applied magnetic field and can be permanently magnetized are
A.
Ferrimagnetic
B.
Diamagnetic
C.
Paramagnetic
D.
Ferromagnetic
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
Ferromagnetic substance get permanently magnetised in applied Magnetic Field.
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q7.
Defects in solids can be studied using
A.
X – ray diffraction
B.
All of these
C.
Scanning electron microscopy
D.
Optical microscopy
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
All these can be used to detect defects in solid
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q8.
Solids with conductivities ranging from
10
4
t
o
10
7
o
h
m
−
1
m
−
1
A.
insulators
B.
Conductors
C.
semi conductors
D.
non – metals
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
They are good conductors of electricity.
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q9.
Which type of solid conduct electricity in molten state but not in solid state?
A.
Ionic
B.
Network
C.
Covalent
D.
Metallic
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
In molten state ions can exist so they can conduct electricity
# Solid State
# CBSE 12 TH CHEMISTRY
Prepare / Learn
Q10.
Point defect is also known as
A.
Two dimensional defect
B.
Single dimensional defect
C.
none of these
D.
Zero dimensional defect
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
Point defect is zero dimensional defect.
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