Carbon: An Important Element Chapter No 13 MCQ
Science and
Technology
Class 9 MCQ
Maharashtra State Board 
|
1 |
The
carbon-di-oxide also known as co2 can be easily liquefied and even
solidified because of the …… process? |
|
A |
It
has relatively more force of attraction than other presented gases in the air |
|
B |
It
has more intermolecular space |
|
C |
It
has weak forces of attraction |
|
D |
It
is present in atmosphere |
|
ANS |
It has relative more force of
attraction than other presented gases in the air |
|
2 |
Which
of the following conditions we can boil water easily at room temperature? |
|
A |
At
high pressure |
|
B |
At
atmospheric pressure |
|
C |
At
low pressure |
|
D |
At
very high pressure |
|
ANS |
At low pressure |
|
3 |
Bose-Einstein
condensate have? |
|
A |
Low
kinetic energy |
|
B |
Very
low kinetic energy |
|
C |
High
kinetic energy |
|
D |
Highest
kinetic energy |
|
ANS |
Very low kinetic energy |
|
4 |
Which
of the following option is not an endothermic process? |
|
A |
Temperature
|
|
B |
Insoluble
heavy impurities |
|
C |
Fusion |
|
D |
Vaporisation |
|
ANS |
Temperature |
|
5 |
Which
of the following is best or you can say more suitable for summer? |
|
A |
Polyester
|
|
B |
Nylon |
|
C |
Cotton |
|
D |
Silk |
|
ANS |
Cotton |
|
6 |
Vapours
formed on sublimation of iodine solid are in which colour? |
|
A |
Colourless |
|
B |
Purple
or violet in colour |
|
C |
Orange |
|
D |
Yellow |
|
ANS |
Purple or violet in colour |
|
7 |
As
per the following the kinetic energy of molecules is directly proportional
to? |
|
A |
Pressure |
|
B |
Atmospheric
Pressure |
|
C |
Temperature |
|
D |
None
of them |
|
ANS |
Temperature |
|
8 |
Select
the following that does not affect rate of evaporation? |
|
A |
Temperature |
|
B |
Surface
area |
|
C |
Wind
speed |
|
D |
Insoluble
heavy impurities |
|
ANS |
Insoluble heavy impurities |
|
9 |
Which
of the below energetic and super energetic excited particles? |
|
A |
It
contains of super energetic and super excited particles |
|
B |
Fluorscent
tube and non sign bulbs comprise of plasma |
|
C |
The
gas becomes ionized when electrical energy flows through it |
|
D |
The
plasma lights with colour which does not depend upon the nature of gas |
|
ANS |
The plasma lights with colour which
does not depend upon the nature of gas |
|
10 |
Select
the following which has highest kinetic energy? |
|
A |
Particles
of water at 0 |
|
B |
Particles
of ice at 0 |
|
C |
Particles
of steam at 100 |
|
D |
Particles
of water at 100 |
|
ANS |
Particles of steam at 100 |
|
11 |
A
phenomenon in which an element exists in different modification in same
physical state is called…? |
|
A |
Isomerism |
|
B |
Allotropy |
|
C |
Catenation |
|
D |
Crystallinity |
|
ANS |
Allotropy |
|
12 |
Number
of free electrons(s) in each carbon of graphite is? |
|
A |
One |
|
B |
Two |
|
C |
Three |
|
D |
Four |
|
ANS |
Three |
|
13 |
Carbon
forms large number of organic compounds due to? |
|
A |
Allotropy |
|
B |
Isomerism |
|
C |
Tetravalency |
|
D |
Catenation |
|
ANS |
Allotropy |
|
14 |
Which
of the following does not contain double bound? |
|
A |
Co2 |
|
B |
C2H4 |
|
C |
HCL |
|
D |
O2 |
|
ANS |
HCL |
|
15 |
Raghav
brings his lunch every day to school in a plastic container which has resin
code number 5. The container is made of? |
|
A |
Polystrene |
|
B |
PVC |
|
C |
Polypropylene |
|
D |
LDPE |
|
ANS |
Polypropylene |
|
16 |
Plastics
made of polycarbonate and Acrylonitric butadiene styrene are made of resin
code? |
|
A |
2 |
|
B |
5 |
|
C |
6 |
|
D |
7 |
|
ANS |
7 |
|
17 |
The
lead pencil contains? |
|
A |
Graphite |
|
B |
Diamond |
|
C |
Lead |
|
D |
Charcoal |
|
ANS |
Graphite |
|
18 |
Graphene
is one atom thick layer of carbon obtained from? |
|
A |
Diamond |
|
B |
Fullerene |
|
C |
Graphite |
|
D |
Gas
carbon |
|
ANS |
Graphite |
|
19 |
The
legal measure to prevent plastic pollution come under the
protection act 1988? |
|
A |
Forest |
|
B |
Wild
life |
|
C |
Environment |
|
D |
Human
rights |
|
ANS |
Environment |
|
20 |
The
property of flow is unique to fluids which one of the following statements is
correct? |
|
A |
Only
gases behave like fluids |
|
B |
Gases
and solids behave like fluids |
|
C |
Gases
and liquids behave like fluids |
|
D |
Only
liquids are fluids |
|
ANS |
Gases and liquids behave like
fluids |
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