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WorksheetsMATTER IN OUR SURROUNDINGS
Total questions: 30
Worksheet time: 15mins
Which is known as dry ice.
CO2
H2O
Fruit ice
Both a &b
The process in which solid is directly convert into gas is called
Condensation
Boiling
Evaporation
Sublimation
The SI unit of latent heat of vapourization is
(a)
What will be the impact on the volume of gases if we increase the pressure of the gases in the container?
Increase
Decrease
First increase then decreases
First decreases then increase
None of the above
when 2-3 crystals of potassium permanganate are dissolved in water on every 1/10 addition , the colour of water will be purple pink, becomes pale pink and pale pink due to
Concentration increases
Dilution
Operation
None of these
as the temperature rises, particles of matter move
fast
slow
not effected
none of them
The S.I unit of temperature is Kelvin, at standard temperature pressure , 373 K is equal to ________ 0 F
202
37.6
212
32
In which state of matter , process of diffusion is fastest?
Liquids
Gases
Solids
Semi - solids
A few substances are arranged in the increasing order of 'forces of attraction'between their particles.Which one of the following represents a correct arrangement?
Water,air,wind
Air,sugar,oil
Oxygen,water,sugar
Sugar,juice,air
The fifth state of matter is
plasma
Ionised state
BEC
AEC
Which of the following has minimum kinetic energy ?
Particles of ice below 0 °C
Particles of water at 0 °C
Particles of water at 100 °C
Particles of steam at 100 °C
When water gets solidified into ice, then heat is:
absorbed
evolved
first absorbed then evolved
initially evolved then absorbed
In which form, do the water molecules have less kinetic
energy?
(a) Ice
(b) Water
(c) Steam
(d) All of them have equal kinetic energy
Which of the following has highest kinetic energy?
(a) Particles of ice at 0 degree C
(b) Particles of water at 0 degree C
(c) Particles of water at 100 degree C
(d) Particles of steam at 100 degree C
Kinetic energy of molecules is directly proportional to
(a) temperature
(b) pressure
(c) both (a) and (b)
(d) atmospheric pressure
A gas can be best liquefied
(a) by increasing the temperature
(b) by lowering the pressure
(c) by increasing the pressure and reducing the
temperature
(d) none of these
The evaporation of a liquid can be best carried out
in a
(a) beaker
(b) China dish
(c) test tube
(d) flask
The state of matter which consists of super energetic
particles in the form of ionized gases is called
(a) gaseous state
(b) liquid state
(c) Bose-Einstein condensate
(d) plasma state
235K = _________°C
38
-20
20
-38
Which one of the following is an example of a fluid?
Oxygen
Carbon
Phosphorus
Sulphur
Melting point of ice is
273.16K
373.15K
100°C
250.18K
Which of the following undergoes sublimation?
Sodium chloride
Potassium chloride
Ammonium sulphate
Ammonium chloride
Which one among the followings has a fixed volume but no fixed shape?
Carbon dioxide
Ice
Kerosene
Xenon
A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles. Which one of the following is the correct arrangement?
oxygen – honey – sugar
oil – air– salt
juice – salt – oxygen
salt – air – sugar solution
Mass per unit volume of a substance is
Rigidity
Density
Compressibility
Viscosity
Which is an example of bulk phenomenon?
Evaporation
Sublimation
Boiling
Condensation
The amount of water vapour present in the air is called
Transpiration
Vapourisation
Humidity
Diffusion
On which factors evaporation does not depend
Humidity
Temperature
Surface area
Quality of matter
Choose the correct statement out of the following
Conversion of solid into vapours without becoming liquid is called evaporation.
Conversion of vapours into solid without becoming liquid is called sublimation
Conversion of solid into liquid is called sublimation.
Conversion of liquid into vapours is called fusion.
Latent heat of fusion is amount of
heat energy required to change 1 kg solid into liquid completely at its melting point.
heat energy required to convert 1 kg solid into liquid at room temperature
heat energy required to change 1 g of solid into liquid completely
heat energy required to change 1 kg of solid into liquid at any temperature.
