Multiple Choice Questions
Matter In Our Surroundings
Practice Questions with Answers
Total 100 questions available
Q. 1
However great the pressure, a gas cannot be liquefied above its
A
Room temperatureB
Inversion temperatureC
Boyle temperatureD
Critical temperatureClick an option to check your answer
Q. 2
Under what conditions does diffusion occur faster?
A
Low temperatureB
High temperatureC
High pressureD
Low pressureClick an option to check your answer
Q. 3
Choose the correctly matched pair.
A
Latent Heat of Fusion - Energy required to change 1 kg of solid to liquidB
Boiling Point of Water - 273 KC
Melting Point of Ice - 373 KD
Latent Heat of Vaporisation - Temperature at which a liquid starts boilingClick an option to check your answer
Q. 4
What is the physical state of water at 10°C?
A
LiquidB
SolidC
GasD
All of theseClick an option to check your answer
Q. 5
Conversion of a liquid to a gas at all temperatures is called
A
SublimationB
EvaporationC
CondensationD
BoilingClick an option to check your answer
Q. 6
Assertion (A): Evaporation causes cooling in an open vessel. Reason (R): Energy is absorbed from the surroundings during evaporation, leading to a decrease in temperature.
A
If both Assertion and Reason are true and Reason is the correct explanation of AssertionB
If both Assertion and Reason are true but Reason is not the correct explanation of AssertionC
If Assertion is true but Reason is falseD
If both Assertion and Reason are falseClick an option to check your answer
Q. 7
What kind of energy does particles of matter possess?
A
Sound energyB
Electrical energyC
Solar energyD
Kinetic energyClick an option to check your answer
Q. 8
What describes the arrangement of particles in a gas?
A
Random and tightly packedB
Fixed and orderlyC
Close together but disorderedD
Spread out and not closely packedClick an option to check your answer
Q. 9
Why does a gas exert pressure on walls of the container?
A
Because particles of gas are static.B
Because particles of gas hit the walls of container.C
Because particles of gas react with each other.D
None of the aboveClick an option to check your answer
Q. 10
In the diffusion experiment with ink and honey, why does honey take longer to spread?
A
Honey particles have less kinetic energyB
Honey is less denseC
Honey particles are largerD
Honey is more viscousClick an option to check your answer
Q. 11
The temperature at which a solid changes into liquid at atmospheric pressure is called –
A
EvaporationB
Boiling pointC
Melting pointD
DiffusionClick an option to check your answer
Q. 12
Name the process by which a drop of ink spreads in a beaker of water –
A
SublimationB
VaporizationC
DiffusionD
CondensationClick an option to check your answer
Q. 13
Which of the following does not undergo sublimation?
A
Sodium chlorideB
IodineC
Ammonium chlorideD
Solid carbon dioxideClick an option to check your answer
Q. 14
Choose the correctly matched pair.
A
Panch Tatva - Five Basic ElementsB
SI unit of mass - LitreC
Particles of matter - ContinuousD
SI unit of volume - MetreClick an option to check your answer
Q. 15
How does the particle movement in a liquid compare to that in a gas?
A
Particles in a liquid move less freelyB
Particles in a liquid move more freelyC
Particles in a liquid are stationaryD
Particles in a liquid move at the same speed as in a gasClick an option to check your answer
Q. 16
Shivam visited an LPG unit and found that the gas can be liquefied at specific conditions. What are the correct conditions?
A
Low temperature and high pressureB
High temperature and high pressureC
High temperature and low pressureD
Low temperature and low pressureClick an option to check your answer
Q. 17
Latent heat of fusion is the amount of
A
Heat energy required to change 1 kg of solid into liquid completelyB
Heat energy required to change 1 kg solid into liquid completely at its melting pointC
Heat energy required to change 1 kg of solid into liquid at any temperatureD
Heat energy required to convert 1 kg solid into liquid at room temperatureClick an option to check your answer
Q. 18
Why does ink spread faster than honey in water?
A
Honey particles have higher densityB
Ink particles move fasterC
Ink particles are largerD
Honey is more viscousClick an option to check your answer
Q. 19
Fluids are –
A
Liquids and gasesB
Only solidsC
Liquids and solidsD
Solids and gasesClick an option to check your answer
Q. 20
Which of the following is not correct?
A
SI unit of temperature is kelvinB
SI unit of density is kg/m³C
1 litre = 1000 cm³ = 1 dm³D
SI unit of pressure is NewtonClick an option to check your answer
Q. 21
Arrange the following substances in increasing order of attraction between the particles: water, sugar, oxygen.
A
water < sugar < oxygenB
oxygen < water < sugarC
sugar < oxygen < waterD
noneClick an option to check your answer
Q. 22
Which of the following will not sublimate?
A
CamphorB
ammonium chlorideC
iodineD
bromineClick an option to check your answer
Q. 23
As the solid melts to form a liquid, which of the following occurs?
A
Compressibility increasesB
Interparticle forces of attraction decreaseC
The kinetic energy of the particle increasesD
All of theseClick an option to check your answer
Q. 24
Which of the following statements is not true?
A
None of theseB
Solid state is the most compact state of a substanceC
Particles which constitute the matter follow a zig-zag pathD
Matter is continuous in natureClick an option to check your answer
Q. 25
Kinetic energy of molecules is directly proportional to
A
TemperatureB
PressureC
Both (a) and (b)D
Atmospheric pressureClick an option to check your answer
Q. 26
What is demonstrated by the experiment of hammering iron wire, chalk, and stretching a rubber band?
A
Heat conductionB
Cohesion and strength of attractionC
Electrical resistanceD
Particle densityClick an option to check your answer
Q. 27
What happens to a rubber band when it is stretched?
A
It turns into a solidB
It breaks immediatelyC
It stretches significantly before breakingD
It remains unchangedClick an option to check your answer
Q. 28
Identify the incorrect statement about evaporation
A
It increases with increase in wind speedB
It decreases with increase in temperatureC
It increases with increase in humidityD
It causes coolingClick an option to check your answer
Q. 29
Which condition will increase the evaporation of water?
A
Less exposed surface area of waterB
Adding common salt to waterC
Increase in temperature of waterD
Decrease in temperature of waterClick an option to check your answer
Q. 30
What is the physical state of water at 100°C?
A
both gaseous and liquid stateB
solid stateC
liquid stateD
gaseous stateClick an option to check your answer
Q. 31
A desert cooler gives comfort due to cooling caused by evaporation of water. Under which condition does it work more effectively?
A
On a rainy dayB
Hot and humid weatherC
Hot and dry weatherD
A hot and sunny dayClick an option to check your answer
Q. 32
Name the state of matter which has least compressibility.
A
LiquidB
SolidC
GasD
None of the aboveClick an option to check your answer
Q. 33
In which state of matter do particles have a definite volume but no definite shape?
A
GasB
PlasmaC
LiquidD
SolidClick an option to check your answer
Q. 34
What happens when you add sugar to water?
A
Volume of water doubles.B
Volume of water decreases.C
Volume of water remains the same.D
None of the aboveClick an option to check your answer
Q. 35
The rate of evaporation decreases with
A
increase in wind speedB
increase of temperatureC
increase of surface areaD
increase in humidityClick an option to check your answer
Q. 36
Which substance undergoes sublimation process?
A
N2B
Br2C
NaphthaleneD
IceClick an option to check your answer
Q. 37
Particles of a liquid -
A
have large intermolecular spacesB
move in systematic orderC
can slip and slide over each otherD
are most orderedClick an option to check your answer
Q. 38
What effect does increasing temperature have on the particles of matter?
A
Decreases their movementB
Increases their movementC
No effect on movementD
Makes them move randomlyClick an option to check your answer
Q. 39
Convert 300K into Celsius
A
5730°CB
3000°CC
2730°CD
27°CClick an option to check your answer
Q. 40
Which state of matter has the strongest particle attraction?
A
LiquidB
SolidC
PlasmaD
GasClick an option to check your answer
Q. 41
In an endothermic process heat is absorbed, in an exothermic process heat is evolved and in an athermic process no thermal change is observed. What is the nature of evaporation of ether?
A
ExothermicB
AthermicC
First exothermic then endothermicD
EndothermicClick an option to check your answer
Q. 42
When alcohol is kept in a china dish it evaporates, temperature falls and cooling is produced. Which method is correct to record the temperature?
A
By using a thermometerB
By smell of alcohol vapourC
By touching the surface of china dishD
By taking help from the teacherClick an option to check your answer
Q. 43
Plasma is the.......... state of matter
A
ThirdB
FourthC
FirstD
SecondClick an option to check your answer
Q. 44
On converting 25°C, 38°C, and 66°C to Kelvin scale, the correct sequence of temperature will be
A
298 K, 311 K and 339 KB
273 K, 278 K and 543 KC
298 K, 300 K and 338 KD
298 K, 310 K and 338 KClick an option to check your answer
Q. 45
Find the incorrect statement
A
Low boiling liquids evaporate faster than high boiling liquids.B
Cooling is caused during boilingC
The normal room temperature is 298K and 293K both.D
Evaporation is a surface phenomenon but boiling is notClick an option to check your answer
Q. 46
The interparticle forces are the strongest in
A
AmmoniaB
Sodium BromideC
Carbon dioxideD
Ethyl alcoholClick an option to check your answer
Q. 47
Spreading of fragrance of a burning incense stick in a room shows that:
A
Particles of matter have spaces between them.B
Particles of matter attract each other.C
Particles of matter are constantly moving.D
None of the aboveClick an option to check your answer
Q. 48
How does the movement of particles relate to the mixing of substances?
A
Slower particles lead to faster mixingB
Faster particles lead to faster mixingC
Particle movement has no effect on mixingD
Faster particles lead to slower mixingClick an option to check your answer
Q. 49
What is the force called that holds particles of the same substance together?
A
AdhesionB
CohesionC
ElectromagnetismD
GravityClick an option to check your answer
Q. 50
What does the continuous movement of particles in matter demonstrate?
A
Electrical energyB
Gravitational forceC
Kinetic energyD
Thermal energyClick an option to check your answer
Q. 51
An Almirah is a solid because its
A
hard and rigidB
shape doesn’t change when pressedC
density is very highD
All of theseClick an option to check your answer
Q. 52
The temperature at which a liquid starts boiling at atmospheric pressure is known as –
A
Boiling pointB
CondensationC
Latent heatD
Melting pointClick an option to check your answer
Q. 53
Particles of matter intermix on their own with each other by getting into the ____ between the particles.
A
ForceB
SpacesC
MassD
EnergyClick an option to check your answer
Q. 54
What is the term used for the process where particles spread out on their own in a liquid?
A
EvaporationB
DiffusionC
ConvectionD
CondensationClick an option to check your answer
Q. 55
What happens to the smell of an incense stick when it is lit?
A
It becomes less noticeableB
It disappears quicklyC
It spreads throughout the roomD
It stays in one placeClick an option to check your answer
Q. 56
Which of the following state of matter is easily compressible?
A
SolidB
LiquidC
GasD
None of the aboveClick an option to check your answer
Q. 57
What effect does increasing temperature have on the kinetic energy of particles?
A
It freezes the particlesB
It has no effect on their kinetic energyC
It decreases their kinetic energyD
It increases their kinetic energyClick an option to check your answer
Q. 58
When we put some crystals of potassium permanganate in a beaker containing water, we observe that after some time, the whole water turns pink. This is due to:
A
DiffusionB
SublimationC
MeltingD
Brownian motionClick an option to check your answer
Q. 59
Liquids are called fluids because:
A
Liquids do not fill the whole container in which they are placed.B
Liquids can flow.C
Particles of a liquid have spaces between them.D
Particles of a liquid have no force of attraction between them.Click an option to check your answer
Q. 60
Why is the rate of diffusion of liquids higher than that of solids?
A
In solid state, particles cannot be compressed easily.B
In the liquid state, particles move freely as compared to solids.C
In solid state, particles have least force of attraction between the particles.D
In the liquid state, particles are tightly packed.Click an option to check your answer
Q. 61
What occurs to the particles in a gas when it is compressed?
A
They move faster and stay apartB
They stop movingC
They stay the sameD
They move slower and get closer togetherClick an option to check your answer
Q. 62
The physical state of matter which can be easily compressed –
A
LiquidB
GasC
SolidD
None of theseClick an option to check your answer
Q. 63
Identify the incorrect statement
A
Ether is most volatileB
Water is least volatileC
Alcohol is moderately volatileD
Acetone is least volatileClick an option to check your answer
Q. 64
Which one of the following sets of phenomena would increase on raising the temperature?
A
Evaporation, solubility, diffusion, compression of gasesB
Evaporation, compression of gases, solubilityC
Evaporation, diffusion, expansion of gasesD
Evaporation, diffusion, compression of gasesClick an option to check your answer
Q. 65
On increasing the temperature of the liquid the rate of evaporation is –
A
IncreaseB
DecreasesC
No changeD
None of theseClick an option to check your answer
Q. 66
In which state of matter, the distance between the particles is least?
A
SolidB
LiquidC
GasD
None of the aboveClick an option to check your answer
Q. 67
Why does chalk break into powder when hammered?
A
Strong particle attractionB
No particle movementC
Random particle arrangementD
Weaker particle attractionClick an option to check your answer
Q. 68
The process of change of a liquid into vapor at any temperature is called –
A
DiffusionB
CoolingC
EvaporationD
HeatingClick an option to check your answer
Q. 69
The property to flow is unique to fluids. Which one of the following statements is correct?
A
Gases and liquids behave like fluidsB
Only liquids are fluidsC
Gases and solids behave like fluidsD
Only gases behave like fluidsClick an option to check your answer
Q. 70
Which factor affecting Evaporation –
A
TemperatureB
Surface areaC
Both Temperature & Surface areaD
None of theseClick an option to check your answer
Q. 71
The boiling point of water on the Kelvin scale is –
A
573 KB
273 KC
100 KD
373 KClick an option to check your answer
Q. 72
The process for the change of a solid directly into its vapor is called –
A
EbullitionB
CondensationC
EvaporationD
SublimationClick an option to check your answer
Q. 73
Under which of the following conditions can we boil water at room temperature?
A
At very high pressureB
At moderate pressureC
At atmospheric pressureD
At low pressureClick an option to check your answer
Q. 74
Which process involves the transformation of gas directly into a solid?
A
SublimationB
VaporizationC
DepositionD
CondensationClick an option to check your answer
Q. 75
Which of the following does not affect the rate of evaporation?
A
TemperatureB
Insoluble heavy impuritiesC
Surface areaD
Wind speedClick an option to check your answer
Q. 76
What factor does not affect the rate of evaporation?
A
Insoluble heavy impuritiesB
TemperatureC
Wind speedD
Surface areaClick an option to check your answer
Q. 77
Dry ice is –
A
CO2 in liquid stateB
Water in gaseous stateC
CO2 in solid stateD
Water in solid stateClick an option to check your answer
Q. 78
Which of the following has the weakest particle attraction?
A
PlasmaB
SolidC
LiquidD
GasClick an option to check your answer
Q. 79
Assertion (A): Water droplets form on the outer surface of a glass containing ice-cold water. Reason (R): Water evaporates from the glass and condenses on the outside.
A
If both Assertion and Reason are true and Reason is the correct explanation of AssertionB
If both Assertion and Reason are true but Reason is not the correct explanation of AssertionC
If Assertion is true but Reason is falseD
If both Assertion and Reason are falseClick an option to check your answer
Q. 80
What property of matter allows gases to be highly compressible compared to solids and liquids?
A
Rigid structureB
Fixed volumeC
Random movement of particlesD
Definite shapeClick an option to check your answer
Q. 81
Which of the following has the strongest interparticle force at room temperature?
A
ChalkB
IronC
MercuryD
NitrogenClick an option to check your answer
Q. 82
According to the kinetic theory of gases, in an ideal gas, between two successive collisions a gas molecule travels
A
in a circular pathB
with an accelerated velocityC
in a wavy pathD
in a straight line pathClick an option to check your answer
Q. 83
Find the incorrect statement
A
Potassium permanganate is orange in colour.B
Solids have negligible K. E. of the particles.C
Gases have maximum fluidity and least rigidity.D
Inter-particle attraction depends on the physical state of the matterClick an option to check your answer
Q. 84
The melting point of ice is –
A
0°CB
4°CC
5°CD
None of theseClick an option to check your answer
Q. 85
Which of the following statements is incorrect?
A
Particles of matter attract each otherB
Matter is continuous in natureC
Matter is made up of particlesD
Particles of matter are always in state of motionClick an option to check your answer
Q. 86
Pressure on the surface of a gas is increased. What will happen to the inter-particle forces?
A
They will remain constantB
They will increaseC
They will decreaseD
None of theseClick an option to check your answer
Q. 87
Convert the temperature of 270 K to the Celsius scale –
A
5°CB
–4°CC
–3°CD
2°CClick an option to check your answer
Q. 88
What does the experiment with an unlit and lit incense stick illustrate about particles?
A
Particles move only when heatedB
Particles move continuouslyC
Particles move in a fixed pathD
Particles do not moveClick an option to check your answer
Q. 89
Convert the temperature of 373°C to the Kelvin scale?
A
646 KB
500 KC
546 KD
300 KClick an option to check your answer
Q. 90
What principle is demonstrated by the diffusion of particles from a higher concentration to a lower concentration?
A
Kinetic theoryB
Conservation of massC
Law of mixturesD
OsmosisClick an option to check your answer
Q. 91
Solids do not flow because
A
Of large molecular space between particlesB
They do not have a definite shapeC
They have very strong intermolecular forces in between particlesD
All of theseClick an option to check your answer
Q. 92
Choose the correct statement out of the following.
A
Conversion of solid into vapours without passing through the liquid state is called vaporisationB
Conversion of solid into vapours without passing through the liquid state is called sublimationC
Conversion of vapours into solid without passing through the liquid state is called CondensationD
Conversion of solid into vapours without passing through the liquid state is called fusionClick an option to check your answer
Q. 93
What observation is expected when crystals dissolve in hot water compared to cold water?
A
Faster dissolution in cold waterB
Faster dissolution in hot waterC
Same rate of dissolution in both casesD
Crystals dissolve only in cold waterClick an option to check your answer
Q. 94
Which term describes the random movement of microscopic particles in a fluid due to continuous bombardment from surrounding molecules?
A
Brownian danceB
Zig-zag danceC
Brownian motionD
Particle waltzClick an option to check your answer
Q. 95
Condensation process is –
A
Change of state from gas to solidB
Change of state from liquid to gasC
Change of state from solid to liquidD
Change of state from gas to liquidClick an option to check your answer
Q. 96
Name the state of matter that ‘has minimum interparticle attraction’
A
LiquidB
SolidC
GasD
All of theseClick an option to check your answer
Q. 97
What is the volume of gases?
A
Take the volume of containerB
LargeC
Almost NilD
DefiniteClick an option to check your answer
Q. 98
Which of the following is the correct order of forces of attraction?
A
Salt > Air > JuiceB
Air > Sugar > OilC
Air < Water < SugarD
Water > Air > SandClick an option to check your answer
Q. 99
The change of state from solid to liquid is known as –
A
MeltingB
BoilingC
SublimationD
None of theseClick an option to check your answer
Q. 100
Which one of the following decreases the extent of evaporation of water?
A
High temperatureB
Large humidityC
High wind speedD
Large surface areaClick an option to check your answer
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